> Organization > Research Institute for Measurement and Analytical Instrumentation (RIMA) > RIMA Research Groups > Advanced Beam Measurement Group > Research ResultsCooling positronium to ultralow velocities with a chirped laser pulse train
K. Shu, Y. Tajima, R. Uozumi, N. Miyamoto, S. Shiraishi, T. Kobayashi, A. Ishida, K. Yamada, R. W. Gladen, T. Namba, S. Asai, K. Wada, I. Mochizuki, T. Hyodo, K. Ito, K. Michishio, B. E. O'Rourke, N. Oshima and K. Yoshioka,
Nature Open access (2024)
Injection and confinement of positron bunches in a magnetic dipole trap
A. Deller, J. von der Linden, S. Nißl, K. Michishio, N. Oshima, H. Higaki, and E. V. Stenson,
Phys. Rev. E 110, L023201 (2024)
Annealing behaviors of open spaces and gas desorption in chemical vapor deposited SiO2 studied with monoenergetic positron beams
A. Uedono, R. Hasunuma, K. Onishi, H. Kitagawa, F. Inoue, K. Michishio and N. Oshima,
Journal of Applied Physics Vol.136, No.4 (2024) 045304
Spatial Dynamics of Water Molecules Confined in DeuteratedEpoxies by Quasi-Elastic Neutron Scattering
Y. Nakamura, T. Tominaga, T. Iwata, K. Inoue, Y. Fujii, N. Oshima and M. Naito,
Macromolecules Vol.57, No.9 (2024) 3857-4636
Tabular Two-Dimensional Correlation Analysis for Multifaceted Characterization Data
S. Muroga, S. Yamazaki, K. Michishio, H. Nakajima, T. Morimoto, N. Oshima, K. Kobayashi and T. Okazaki,
Applied Spectroscopy OnlineFirst (2024)
Recent status and measurement examples of the compact accelerator-driven neutron facility AISTANS
K. Kino, T. Fujiwara, B.E. O'Rourke, N. Oshima,
EPJ Web of Conferences, 298 (2024), 01002
Measurements of Carbon Content and Retained Austenite Volume Fraction in Steels
by Neutron Bragg-edge Transmission Analysis at a Compact Neutron Source, AISTANS
K. Kino, Y. Tomota, N. Oshima,
Tetsu to Hagane, (Advance published date: Jun. 21, 2024)
Robustness of semimetallic transport properties of TaAs against off-stoichiometric disorder
A. Kawasuso, M. Suda, H. Murakawa, M. Komada, C. Suzuki, H. Amada, K. Michishio, M. Maekawa, A. Miyashita, N. Seko, S. Yamamoto, N. Oshima, S. Seki and N. Hanasaki,
Journal of Applied Physics 133, 223903 (2023)
The Buncher and the Magnetic Lens for the LINAC Based Low Energy Positron Beams at AIST
Hiroyuki Higaki, Koji Michishio, Akira Ishida and Nagayasu Oshima,
Plasma and Fusion Research, Vol.18, 1406023 (2023)
Very high-cycle fatigue properties of 90 unidirectional CFRP laminates and evaluation of fatigue limits by free volume
measurement using positron microscopy
Masafumi Tazuke, Tsuyoshi Miyakoshi, Atsushi Hosoi, Koji Michishio, Nagayasu Oshima and Hiroyuki Kawada,
Mechanical Engineering Journal, Article ID: 23-00089, Advance online publication: May 09 (2023)
Micro and macroscopic structure evolution of few-walled carbon nanotube bundled network by high temperature anneal
K. Kobashi, S. Yamazaki, K. Michishio, H. Nakajima, S. Muroga, T. Morimoto, N. Oshima and T. Okazaki,
Carbon 203, 785-800 (2023)
Positron annihilation study of tungsten exposed to low-energy deuterium plasma
Tetsuya Hirade, Hikaru Furuta, Yuji Torikai, Yuki Fujimura, Koji Michishio
JJAP Conf. Proc. 9, 011106 (2023)
Development of a porous silica cavity for laser excitation of confined positronium
Kenji Shu, Kyohei Yamada, Kaori Hashidate, Akira Ishida, Toshio Namba, Shoji Asai, Makoto Kuwata-Gonokami, Yohei Tajima, Eunmi Chae, Kosuke Yoshioka, Nagayasu Oshima, Brian E. O fRourke, Koji Michishio, Kenji Ito, Kazuhiro Kumagai, Ryoichi Suzuki, Shigeru Fujino, Toshio Hyodo, Izumi Mochizuki, Ken Wada, Takeshi Kai
JJAP Conf. Proc. 9, 011202 (2023)
Estimation of lattice defect density by positron annihilation lifetime measurement in a short time
Masato Yamawaki, Naoya Uesugi, Yoshinori Kobayashi
JJAP Conf. Proc. 9, 011303 (2023)
Positrons and positronium in macromolecules: Consequences of different charge states
Yoshinori Kobayashi, Kiminori Sato, Masato Yamawaki, Koji Michishio, Toshitaka Oka and Masakazu Washio
Radiation Physics and Chemistry, 202 (2023) 110590
Neutron Imaging Performance at AIST: Insights into Current Status with Neutron Flat-Panel-Detector and IGZO-TFT
T. Fujiwara, K. Kino, M. Tanaka, H. Kimura and N. Oshima,
Proceedings of the International Display Workshops, Volume 30 (2023), AMD1-3 (Invited)
Residual stress relaxation by bending fatigue in induction-hardened gear studied by neutron Bragg edge transmission imaging and X-ray diffraction
Yuhua Su, Kenichi Oikawa, Takenao Shinohara, Tetsuya Kai, Takashi Horino, Osamu Idohara, Yoshitaka Misaka and Yo Tomota
International Journal of Fatigue, Vol. 174, September 2023, 107729
Development of a Bragg-edge Neutron Transmission Imaging Detector Combined with Micro-structured Boron Cathode and Glass Gas Electron Multiplier
Takeshi Fujiwara, Koichi Kino, Nagayasu Oshima, and Michihiro Furusaka
Sensors and Materials, Vol. 35, No. 2 (2023) 537?544
Application of on-site positron annihilation lifetime spectroscopy system as non-destructively shot peening evaluation technique
N. Uesugi, M. Yamawaki, K. Hattori, Y. Watanabe
Proceedings of ICSP14, Doc No. 2022058 (2022)
Development of a small and light portable positron annihilation lifetime measurement equipment for on-site measurements
Masato Yamawaki, Naoya Uesugi and Yoshinori Kobayashi,
Jpn. J. Appl. Phys. 61, 066503 (2022)
Efficient positron trapping and extraction with a center-hole SiC remoderator
Koji Michishio, Hiroyuki Higaki, Akira Ishida, Nagayasu Oshima
New Journal of Physics 24 (2022) 123039
Vacancy-type defects in TiN/ZrO2/TiN capacitors probed by monoenergetic positron beams
Akira Uedono, Naomichi Takahashi, Ryu Hasunuma, Yosuke Harashima, Yasuteru Shigeta, Zeyuan Ni, Hidefumi Matsui, Akira Notake, Atsushi Kubo, Tsuyoshi Moriya, Koji Michishio, Nagayasu Oshima, Shoji Ishibashi
Thin Solid Films 762 (2022) 139557
Energy dissipation of para-positronium in polymers and silica glass
Yoshinori Kobayashi, Kiminori Sato, Masato Yamawaki, Koji Michishio, Toshitaka Oka and Masakazu Washio
Applied Physics Express 7 (2022) 076001
Temperature dependence of positron annihilation lifetime in near-surface and bulk of room-temperature ionic liquid observed by a slow positron beam
T.Hirade, K.Michishio, Y.Kobayashi and N.Oshima
Chemical Physics Letters 795 (2022) 139507
Relationship between the elastic properties and structure of BaO-TiO2-GeO2-SiO2 glasses
Hirokazu Masai, Yasuhiro Fujii, Naoyuki Kitamura and Masato Yamawaki
Journal of Non-Crystalline Solids 576 (2022) 121248
Positron-induced Radiophotoluminescence in Ag-doped Glasses
Hirokazu Masai, Yuka Yanagida, Hiroki Kawamoto, Yasuhiro Koguchi, Masanori Koshimizu, and Masato Yamawaki
Senors and Materials 34 (2022) 699
Neutron performance and future prospect of the compact electron accelerator-driven neutron facility AISTANS
Kino, Koichi; Fujiwara, Takeshi; Furusaka, Michihiro; Muroga, Takemi; O fRourke, Brian E.; Oshima, Nagayasu; Tomota, Yo;
Eur. Phys. J. Plus 137 1260 (2022)
Pulsed neutron-beam flux with the supermirror neutron guide system at AISTANS
K. Kino, M. Furusaka, T. Fujiwara, B. E. O'Rourke, T. Muroga, Y. Tomota and N. Oshima
Journal of Neutron Research, vol. 24, no. 3-4, pp. 395-401, 2022
Neutron flat-panel detector using In?Ga?Zn?O thin-film transistor
Takeshi Fujiwara, Hiroaki Miyoshi, Yuki Mitsuya, Norifumi L. Yamada, Yasuo Wakabayashi, Yoshie Otake, Masahiro Hino, Koichi Kino, Masahito Tanaka, Nagayasu Oshima, and Hiroyuki Takahashi
Review of Scientific Instruments 93, 013304 (2022)
Nondestructive quantitative imaging for spatially nonuniform degradation in a commercial lithium-ion battery using a pulsed neutron beam
Koichi Kino, Takanori Itoh, Takeshi Fujiwara, Ryunosuke Kuroda, Nagayasu Oshima, Masahito Tanaka, Akira Watazu, Takashi Kamiyama, Masao Yonemura and Yoshihisa Ishikawa
Appl. Phys. Express 15 027005 (2022)
Independent contribution of optical attenuation length in ultrafast laser-induced structural change
Tatsunori Shibuya, Kazuyuki Sakaue, Hiroshi Ogawa, Daisuke Satoh, Thanh-Hung Dinh, Masahiko Ishino, Masahito Tanaka, Masakazu Washio, Takeshi Higashiguchi, Masaharu Nishikino, Akira Kon, Yuya Kubota, Yuichi Inubushi, Shigeki Owada, Yohei Kobayashi, and Ryunosuke Kuroda
Optics Express @Vol. 29, Issue 21, pp. 33121-33133 (2021)
Observation of orthopositronium thermalization in silica aerogel at cryogenic temperatures
Kenji Shu, Akira Ishida, Toshio Namba, Shoji Asai, Nagayasu Oshima, Brian E. O fRourke and Kenji Ito
Phys. Rev. A 104 (2021) L050801
Newly constructed compact accelerator-based neutron facility
at AIST
Koichi Kino, Takeshi Fujiwara, Michihiro Furusaka, Noriyosu Hayashizaki,
Hidetoshi Kato, Ryunosuke Kuroda, Koji Michishio, Takemi Muroga, Hiroshi
Ogawa, Brian E. O'Rourke, Nagayasu Oshima, Daisuke Satoh, Norihiro Sei,
Tamao Shishido, Ryoichi Suzuki, Masahito Tanaka, Yo Tomota, Hiroyuki Toyokawa,
Akira Watazu, Kazuro Furukawa, Kazuyuki Nigorikawa and Takashi Obina,
EPJ Web of Conferences 231, 01002 (2020) UCANS-8
Design and construction of an electron accelerator for a pulsed neutron
facility at AIST
Brian E. O'Rourke, Takeshi Fujiwara, Kazuro Furukawa, Michihiro Furusaka,
Noriyosu Hayashizaki, Hidetoshi Kato, Koichi Kino, Ryunosuke Kuroda, Koji
Michishio, Takemi Muroga, Kazuyuki Nigorikawa, Takashi Obina, Hiroshi Ogawa,
Nagayasu Oshima, Daisuke Satoh, Norihiro Sei, Tamao Shishido, Ryoichi Suzuki,
Masahito Tanaka, Yo Tomota, Hiroyuki Toyokawa, Akira Watazu,
Nuclear Inst. and Methods in Physics Research B 464 (2020) 41?44
Effects of ring size on the dynamics of polyrotaxane glass
Kazuaki Kato, Akihiro Ohara, Koji Michishio, and Kohzo Ito,
Macromolecules 53 20, 8910-8917(2020)
Evaluation methodology of diffusion coefficient of guest substances associated with angstrom-scale open spaces in materials by slow positron beam
Kiminori Sato, Nagayasu Oshima,
Review of Scientific Instruments 91 083907 (2020)
Threshold photodetachment spectroscopy of the positronium negative ion
Koji Michishio, Susumu Kuma, Yugo Nagata, Luca Chiari, Taro Iizuka, Riki Mikami, Toshiyuki Azuma, and Yasuyuki Nagashima,
Phys. Rev. Lett. 125 063001 (2020)
Temperature dependence of ortho-Positronium Annihilation in Room Temperature Ionic Liquids
T. Hirade, K. Michishio, Y. Kobayashi, N. Oshima,
Acta Physica Polonica A 137 109 - 112 (2020)
Accumulation of LINAC based low energy positrons in a buffer gas trap
Hiroyuki Higaki, Koji Michishio, Kaori Hashidate, Akira Ishida and Nagayasu Oshima,
Appl. Phys. Ex. 13, 066003 (2020)
Intense positron beam facility for advanced material analysis
Koji Michishio, Brian E. O'Rourke and Nagayasu Oshima,
NMIJ Newsletter No. 11, 2 (2020)
Motion-Induced Transition of Positronium through a Static Periodic Magnetic Field in the Sub-THz Region
Y. Nagata, K. Michishio, T. Iizuka, H. Kikutani, L. Chiari, F. Tanaka, and Y. Nagashima,
Phys. Rev. Lett. 124, 173202 (2020)
Development of a method for positron annihilation lifetime measurement in thin polyethylene films using a Na-22 source
Masato Yamawaki, Naoya Uesugi, Toshitaka Oka, Naotsugu Nagasawa, Hirokazu Ando, Brian E. O'Rourke and Yoshinori Kobayashi,
Jap. J. Appl. Phys. 59, 116504 (2020)
Correlation between structure and physical properties of binary ZnO-P2O5 glasses
Hirokazu Masai, Yohei Onodera, Shinji Kohara, Takahiro Ohkubo, Akitoshi Koreeda, Yasuhiro Fujii, Masanori Koshimizu, and Masato Yamawaki,
Phys. Status Solidi B 257, 2000186 (2020)
Feasibility study of non-destructive defect analysis by positron annihilation lifetime measurement
Masato Yamawaki, Naoya Uesugi and Yoshinori Kobayashi,
Jap. J. Appl. Phys. 59, 066502 (2020)
Drift compensation in dual start/stop data acquisition positron lifetime measurements
Masato Yamawaki, Naoya Uesugi, Hirokazu Ando and Yoshinori Kobayashi,
Jap. J. Appl. Phys. 59, 036501 (2020)
Design of a compact electron accelerator-driven pulsed neutron facility at
AIST
Koichi Kino, Takeshi Fujiwara, Michihiro Furusaka, Noriyosu Hayashizaki,
Ryunosuke Kuroda, Koji Michishio, Takemi Muroga, Hiroshi Ogawa, Brian E.
O fRourke, Nagayasu Oshima, Daisuke Satoh, Norihiro Sei, Tamao Shishido,
Ryoichi Suzuki, Masahito Tanaka, Hiroyuki Toyokawa, Akira Watazu,
Nuclear Inst. and Methods in Physics Research, A 927 (2019) 407?418
A high-quality and energy-tunable positronium beam system employing a
trap-based positron beam
K. Michishio, L. Chiari, F. Tanaka, N. Oshima, and Y. Nagashima,
Rev. Sci. Instrum. 90, 023305 (2019)
Fatigue damage assessment of SUS316L using EBSD and PALS
measurements
Takashi Nagoshi, Shuhei Kozu, Yosuke Inoue, Brian E. O'Rourke, Yoshihisa
Harada,
Materials Characterization 154 (2019) 61?66
Transport of small and neutral solutes through reverse osmosis membranes:
Role of skin layer conformation of the polyamide film
Takahiro Fujioka, Brian E. O'Rourke, Koji Michishio, Yoshinori Kobayashi,
Nagayasu Oshima, Hitoshi Kodamatani, Takuji Shintani, Long D. Nghiem,
Journal of Membrane Science 554 (2018) 301
Study on positronium Bose-Einstein condensation
Akira Ishida, Kenji Shu, Tomoyuki Murayoshi, Xing Fan, Toshio Namba, Shoji Asai, Kosuke Yoshioka, Makoto Kuwata-Gonokami, Nagayasu Oshima, Brian E. O fRourke, and Ryoichi Suzuki,
JJAP Conf. Proc. 7, 011001 (2018)
Subnanopore filling during water vapor adsorption on microporous silica thin films as
seen by low-energy positron annihilation
Kenji Ito, Shigeru Yoshimoto, Brian E. O'Rourke, Nagayasu Oshima, and Kazuhiro
Kumagai,
App. Phys. Lett. 112 (2018) 083701
Performance evaluation of polyamide TFC membranes: Effects of free volume
properties on boron transport
Sung-Jo Kim, Doseon Han, Hye-Weon Yu, Brian E. O'Rourke, Yoshinori Kobayashi,
Ryoichi Suzuki, Moonhyun Hwang, In S. Kim,
Desalination 432 (2018) 104
Development of a High-brightness, Energy-tunable Positronium Beam for Surface Scattering Experiments
Koji Michishio, Luca Chiari, Fumi Tanaka, Nagayasu Oshima and Yasuyuki Nagashima,
JJAP Conf. Proc. 7, 011304 (2018)
Positron annihilation
in the near surface of room temperature ionic liquids
T. Hirade, B. E.
O'Rourke and Y. Kobayashi
Journal of Physics: Conf. Series 791 (2017)
012029
Characterization of pore
size distribution (PSD) in cellulose triacetate (CTA) and polyamide (PA) thin
active layers by positron annihilation lifetime spectroscopy (PALS) and
fractional rejection (FR) method
S.-J. Kim, S. Kook, B. E. O'Rourke, J.
Lee, M. Hwang, Y. Kobayashi, R. Suzuki, I. S. Kim,
Journal of Membrane Science527
(2017) 143–151
Detection of
re-emission positrons on metal surfaces during slow positron measurements
A. Kinomura, R. Suzuki, H. Ogawa, N. Oshima, B. E. O fRourke and A. Yabuuchi,
Journal
of Physics: Conf. Series 791 (2017) 012035
Evaluation of the
optical performance of a brightness enhancement system developed for the KUR
slow positron beamline
Y. Kuzuya, N. Oshima, A. Kinomura, A. Yabuuchi, K.
Sato and Q. Xu,
Journal of Physics: Conf. Series 791 (2017) 012012
Design of an Acceleration Gap for Brightness Enhancement
in a Reactor-Based Slow Positron Beamline
Y. Kuzuya, N. Oshima, A. Kinomura and A. Yabuuchi,
ACTA PHYSICA POLONICA A 132 (2017) 1620
Study on Bose-Einstein
condensation of positronium
K. Shu, T. Murayoshi, X. Fan, A. Ishida, T.
Yamazaki, T. Namba, S. Asai, K. Yoshioka, M. Kuwata-Gonokami, N. Oshima, B. E.
O'Rourke and R Suzuki,
Journal of Physics: Conf. Series 791 (2017) 012007
Evaluation of a
positron-beam-pulsing system in KUR reactor-based positron beam facility
A.
Yabuuchi, A. Kinomura, Y. Kuzuya, K. Sato, Q. Xu, N. Oshima and B. E. O fRourke,
Journal of Physics: Conf. Series 791 (2017) 012013
Evaluation of structural vacancies for 1/1-Al?Re?
Si approximant crystals by positron annihilation spectroscopy
K. Yamada, H. Suzuki, H. Kitahata, Y. Matsushita, K. Nozawa, F. Komori,
R. S. Yu, Y. Kobayashi, T. Ohdaira, N. Oshima, R. Suzuki, Y. Takagiwa, K. Kimura and I. Kanazawa,
Philosophical Magazine (2017)
Development of an X-ray
tube for irradiation experiments using a field emission electron gun,
H. Kato, B. E. O'Rourke, R. Suzuki, J. Wang, T. Ooi, H. Nakajima, Nucl.
Instrum. Meth. A 807 (2016) 41–46
Hole size distributions
in cardo-based polymer membranes deduced from the lifetimes of ortho-positronium,
Y. Kobayashi, A. Kinomura, S. Kazama, K. Inoue, T. Toyama, Y. Nagai, K.
Haraya, H. F. M. Mohamed, B. E. O fRourke, N. Oshima, R. Suzuki, J. Phys.:
Conf. Ser. 674 (2016) 012017
Production and manipulation of slow positron beams, Part I,
B. E. O fRourke, Japan Positon Science Society, Positron Science No. 6 (2016) 3
Production and manipulation of slow positron beams, Part II,
B. E. O fRourke, Japan Positon Science Society, Positron Science No. 7 (2016) 21
Time-resolved positron annihilation spectroscopy study of relaxation dynamics of ion damage in fused
quartz,
H. Tsuchida, S. Mizuno, H. Tsutsumi, A. Kinomura, R. Suzuki and A. Itoh, Mater. Res. Express 3 055201 (2016)
Probing the internal structure of reverse osmosis membranes by positron annihilation spectroscopy:
Gaining more insight into the transport of water and small solutes,
T. Fujioka, N. Oshima, R. Suzuki, W. E. Price, L. D. Nghiem, Journal of
Membrane Science 486 (2015) 106–118
Stable and high current
density electron emission using coniferous carbon nano-structured emitter,
H. Kato, B. E. O'Rourke, R. Suzuki, Diamond & Related Materials 55 (2015)
41–44
Reduction of helium loss from a superconducting accelerating cavity during initial cool-down and cryostat exchange by pre-cooling the re-condensing cryostat,
B. E. O fRourke, E.J. Minehara, N. Hayashizaki, N. Oshima, R. Suzuki, Nucl.
Instrum. Meth. A 776 83 (2015)
Free Volume Profiles at Polymer–Solid Interfaces Probed by Focused
Slow Positron Beam,
C. Ohrt, K. Rätzke, N. Oshima, Y. Kobayashi, B. E. O fRourke, R. Suzuki,
A. Uedono, F. Faupel, Macromolecules 48 (2015) 1493
Development of a mono-energetic positron beam line at the Kyoto University
Research Reactor,
K. Sato, Q. Xu, T. Yoshiie, T. Sano, H. Kawabe, Y. Nagai, K. Nagumo, K.
Inoue, T. Toyama, N. Oshima, A. Kinomura, Y. Shirai, Nucl. Instrum. Meth.
B 342 104 (2015)
Effect of heat treatment on
fouling resistance and the rejection of small and neutral solutes by reverse
osmosis membranes,
T. Fujioka, N. Oshima, R. Suzuki, M. Higgins, W. E. Price, R. K. Henderson, L. D. Nghiem, Water Science & Technology: Water Supply (2014)
Depth profiling of the free-volume holes in cellulose triacetate hollow-fiber
membranes for reverse osmosis by means of variable-energy positron annihilation
lifetime spectroscopy,
H. Hagihara, K. Ito, N. Oshima, A. Yabuuchi, H. Suda, H. Yanagishita, Desalination,
344 (2014) 86
Nanohole formation in TEOS-HMDSO hybrid CVD films elucidated by positron beams,
K. Ito, N. Oshima, A. Yabuuchi, B. E. O'Rourke, J. Phys.: Conf. Ser. 505 (2014) 012022
Structural Defects and Positronium Formation in 40 keV B+-Implanted Polymethylmethacrylate,
T. Kavetskyy, V. Tsmots, A. Kinomura, Y. Kobayashi, R. Suzuki, H. F. M. Mohamed, O. Sausa, V. Nuzhdin, V. Valeev, and A. L. Stepanov, J. Phys. Chem. B 118 (2014) 4191
Digitized detection of gamma-ray signals concentrated in narrow time windows
for transient positron annihilation lifetime spectroscopy,
A. Kinomura, R. Suzuki, N. Oshima, B. E. O fRourke, T. Nishijima and H. Ogawa, Rev. Sci. Instrum. 85 (2014) 123110
Positron Annihilation in Cardo-Based Polymer Membranes,
Y. Kobayashi, S. Kazama, K. Inoue, T. Toyama, Y. Nagai, K. Haraya, H. F.
M. Mohamed, B. E. O'Rourke, N. Oshima, A.
Kinomura, R. Suzuki, J. Phys. Chem. B 118 (2014) 6007
Design Study of Linear Accelerator-Based Positron Re-Emission Microscopy,
H. Ogawa, A. Kinomura, N. Oshima, R. Suzuki, B. E. O fRourke, JPS Conf.
Proc. 1 (2014) 014006
Development of a vertical slow positron beamline at AIST,
B. E. O fRourke, N. Oshima, A. Kinomura, R. Suzuki, JJAP Conf. Proc. 2 (2014) 011304
Evaluation of vacancies in positive-tone non-chemically and chemically amplified EUV / EB resists: relationship between free-volume and LER,
A. Oshima, T. Hinata, H. Nakamura, T. Oka, N. Oshima, B. E. O'Rourke, R.
Suzuki, M. Washio, S. Tagawa, Proc. SPIE 9051, Advances in Patterning Materials
and Processes XXXI, (2014) 905107
Residual defects in low-dose arsenic-implanted silicon, after high-temperature
annealing,
A. Sagara, M. Hiraiwa, A. Uedono, N. Oshima, R. Suzuki, S. Shibata, Nuclear Instruments and Methods in Physics Research B 321 (2014) 54
Development of combinatorial defect analysis with an intense positron microprobe,
N. Oshima, Y. Kamada, H. Watanabe, A. Kinomura, R. Suzuki, JJAP Conf. Proc.
2, (2014) 011306
Residual defects in low-dose arsenic-implanted silicon, after high-temperature annealing,
A. Sagara, M. Hiraiwa, A. Uedono, N. Oshima, R. Suzuki, S. Shibata, Nuclear
Instruments and Methods in Physics Research B 321 (2014) 54
Development of a compact
and fast response detector using an Yb:Lu2O3 scintillator
for lifetime sensitive positron emission tomography,
Y. Taira, R. Kuroda, M. Tanaka, N. Oshima, B. E. O fRourke, R. Suzuki, H. Toyokawa, K. Watanabe, T. Yanagida, H. Yagi, T. Yanagitani, JINST 9
(2014) C05036
Photon-induced positron annihilation lifetime spectroscopy using an S-band
compact electron linac,
Y. Taira, R. Kuroda, M. Tanaka, M. Kumaki, N. Oshima, B.E. O'Rourke, R.
Suzuki, H. Toyokawa, Rad. Phys. and Chem. 95 (2014) 30-33
Characterization of polyethylene terephthalate films coated with thin AlxSi1−xOy
layers using monoenergetic positron beams,
A. Uedono, S. Murakami, K. Inagaki, K. Iseki, N. Oshima, R. Suzuki, Thin Solid Films 552 (2014) 82
Vacancy-type defects induced by grinding of Si wafers studied by monoenergetic positron beams,
A. Uedono, Y. Mizushima, Y. Kim, T. Nakamura, T. Ohba, N. Yoshihara, N.
Oshima, R. Suzuki, J. App. Phys. 116 (2014) 134501
Defects in nitride-based semiconductors probed by positron annihilation,
A. Uedono, M. Sumiya, S. Ishibashi, N. Oshima, R. Suzuki, J. Phys.: Conf. Ser. 505 (2014) 012009
Positron beam facility at Kyoto University Research Reactor,
Q. Xu, K. Sato, T. Yoshiie, T. Sano, H. Kawabe, Y. Nagai, K. Nagumo, K.
Inoue, T. Toyama, N. Oshima, A. Kinomura, Y. Shirai, J. Phys.: Conf. Ser.
505 (2014) 012030
Annealing of a pre-assembled tungsten positron moderator by direct electron
bombardment,
A. Yabuuchi, N. Oshima, H. Kato, B. E. O fRourke, A. Kinomura, T. Ohdaira,
Y. Kobayashi, R. Suzuki, JJAP Conf. Proc. 2, 011102 (2014)
Structural and defect characterization of Gd-doped GaN films by X-ray diffraction
and positron annihilation,
A. Yabuuchi, N. Oshima, B. E. O'Rourke, R. Suzuki, K. Ito, S. Sano, K. Higashi, Y.-K. Zhou, S. Hasegawa, J. Phys.: Conf. Ser. 505 (2014) 012023
Rejection of small and
uncharged chemicals of emerging concern by reverse osmosis membranes: The role
of free volume space within the active skin layer,
T. Fujioka, N. Oshima, R. Suzuki, S. J. Khan, A. Roux, Y. Poussade, J. E. Drewes, L. D. Nghiem, Separation and Purification Technology 116 426-432 (2013)
On determining the entrance size of cage-like pores in mesoporous silica films by positron annihilation lifetime spectroscopy,
C.Q. He, B.Y. Xiong, W.F. Mao, Y. Kobayashi, T. Oka, N. Oshima, R. Suzuki, Chem. Phys. Lett. 590 97-100 (2013)
In-situ positron lifetime spectroscopy of radiation damage by simultaneous
irradiation of slow-positron and ion beams,
A. Kinomura, R. Suzuki, T. Ohdaira, N. Oshima, B. E. O'Rourke, T. Nishijima,
J. Phys. Conf. Sers. 443 012043 (2013)
Possible presence of hydrophilic SO3H nanoclusters on the surface of dry
ultrathin Nafion (R) films: a positron annihilation study
H. F. M. Mohamed, S. Kuroda, Y. Kobayashi, N. Oshima, R. Suzuki,
A. Ohira, Phys. Chem. Chem. Phys. 15 1518-1525 (2013)
Monte Carlo simulations of the extraction of slow positrons into gas through
thin SiN windows,
B. E. O'Rourke, W. Zhou, N. Oshima, K. Ito, R. Suzuki, J. Phys. Conf. Sers. 443 012069 (2013)
Recent developments and future plans for the accelerator based slow positron facilities at AIST,
B. E. O fRourke, N. Oshima, A. Kinomura, T. Ohdaira and R. Suzuki, Mat.
Sci. Forum 733 285-290 (2013)
Development of Photon-induced Positron Annihilation Lifetime Spectroscopy
using an S-band Compact Electron Linac,
Y. Taira, R. Kuroda, B. E. ORourke, N. Oshima, R. Suzuki, M. Tanaka, H.
Toyokawa, T. Yanagida, K. Watanabe, Proceedings of IPAC2013, THPWA014 pp3660 - 3662
Material characterization for advanced Si LSI process technology by means
of positron annihilation,
A. Uedono, N. Oshima, T. Ohdaira, R. Suzuki, S. Ishibashi, J. Phys. Conf. Sers. 443 012067 (2013)
Material characterization for advanced Si LSI process technology by means
of positron annihilation,
A. Uedono, N. Oshima, T. Ohdaira, R. Suzuki, S. Ishibashi, J. Phys. Conf. Sers. 443 012067 (2013)
Vacancy-type defects in InxGa1-xN grown on GaN templates probed using monoenergetic positron beams,
A. Uedono, T. Watanabe, S. Kimura, Y. Zhang, M. Lozac'h, L.W. Sang, S.
Ishibashi, N. Oshima, R. Suzuki, M. Sumiya, J. Applied Phys. 114 184504 (2013)
Characterization of Porous Structures in Advanced Low-k Films with Thin
TaN Layers Using Monoenergetic Positron Beams,
A. Uedono, P. Verdonck, A. Delabie, J. Swerts, T. Witters, T. Conard, M.R.
Baklanov, S. Van Elshocht, N. Oshima, R. Suzuki, Jap. J. of App. Phys.
52 106501 (2013)
Vacancy-type defects introduced by plastic deformation of GaN studied using
monoenergetic positron beams,
A. Uedono, I. Yonenaga, T. Watanabe, S. Kimura, N. Oshima, R. Suzuki, S. Ishibashi, Y. Ohno, J. App. Phys. 114 084506 (2013)
Vacancy reactions near the interface between electroplated Cu and barrier metal layers studied by monoenergetic positron beams,
A. Uedono, T. Kirimura, C. J. Wilson, K. Croes, S. Demuynck, Z. Tokei,
N. Oshima, R. Suzuki, J. App. Phys. 114 074510 (2013)
Positron Annihilation Spectroscopy on Nitride-Based Semiconductors,
A. Uedono, S. Ishibashi, N. Oshima, R. Suzuki, Jap. J. App. Phys. 52 08JJ02 (2013)
Development of a sample chamber with humidity control for an atmospheric
positron probe microanalyzer,
W. Zhou, N. Oshima, Z. Chen, K. Ito, B. E. O'Rourke, R. Kuroda, R. Suzuki, H. Yanagishita, T. Tsutsui, A. Uedono, J. Phys. Conf. Sers. 443 012090 (2013)
Free volume change of elongated polyethylene films studied using a positron
probe microanalyzer,
T. Oka, N. Oshima, R. Suzuki, A. Uedono, M. Fujinami and Y. Kobayashi,
App. Phys. Lett. 101 203108 (2012)
Enhanced Lattice Defect Formation Associated with Hydrogen and Hydrogen
Embrittlement under Elastic Stress of a Tempered Martensitic Steel,
T. Doshida, H. Suzuki, K. Takai, N. Oshima and T. Hirade, ISIJ International, 52 198 (2012)
Role of pore morphology in positronium diffusion in mesoporous silica thin
films and in positronium emission from the surfaces,
C. He, S. Wang, Y. Kobayashi, T. Ohdaira and R. Suzuki, Phys. Rev. B 86, 075415 (2012)
Development of a Slow Positron Beam System for in-situ Lifetime Measurements
During Ion Beam Irradiation,
A. Kinomura, R. Suzuki, T. Ohdaira, N. Oshima, B.E. O fRourke and T. Nishijima,
Physics Procedia 35 111 (2012)
Production and Applications of Intense, Pulsed, Slow Positron Beams,
B. E. O fRourke, N. Oshima, A. Kinomura, T. Ohdaira and R. Suzuki, e f in
Near Surface Depth Profiling of Solids, Eds. B. N. Ganguly and G. Bauer,
Trans. Tech. Publishers, 2012
Native cation vacancies in Si-doped AlGaN studied by monoenergetic positron
beams,
A. Uedono, K. Tenjinbayashi, T. Tsutsui, Y. Shimahara, H. Miyake, K. Hiramatsu,
N. Oshima, R. Suzuki and S. Ishibashi, Journal of Applied Physics 111, 013512 (2012)
Vacancy-Type
Defects Introduced by Gas Cluster Ion-Implantation on Si Studied by
Monoenergetic Positron Beams,
A. Uedono, T. Moriya, T. Tsutsui, S. Kimura, N. Oshima,
R. Suzuki, S. Ishibashi, H. Matsui, M. Narushima, Y. Ishikawa, M. Graf and K.
Yamashita, Jap. J. App. Phys. 51 111801 (2012)
Vacancy
clustering and its dissociation process in electroless deposited copper films
studied by monoenergetic positron beams,
A. Uedono, Y. Yamashita, T.
Tsutsui, Y. Dordi, S. Li, N. Oshima, and R. Suzuki, J. Appl. Phys. 111
(2012) 104506
In-situ Characterization of Free-Volume Holes in Polymer Thin Films under
Controlled Humidity Conditions with an Atmospheric Positron Probe Microanalyzer,
W. Zhou, Z. Chen, N. Oshima, Kenji Ito, B. E. O fRourke, R. Kuroda, R. Suzuki, H.
Yanagishita, T. Tsutsui, A. Uedono and N. Hayashizaki, App. Phys. Lett. 101,
014102 (2012)
Low energy positron
annihilation study of composite reverse osmosis membranes,
Z. Chen, K. Ito, H. Yanagishita, N. Oshima, R. Suzuki and Y. Kobayashi, Journal of Physics; Conference Series, 262 012013 (2011)
Correlation Study between Free-Volume Holes and Molecular Separations of Composite Membranes for Reverse Osmosis Processes by Means of Variable-Energy Positron Annihilation Techniques,
Z. Chen, K. Ito, H. Yanagishita, N. Oshima, R. Suzuki, and Y. Kobayashi,
Journal of Physical Chemistry C 115 18055 (2011)
Defect profiles in ion-irradiated metal samples by slow positron beams
in comparison with simulation profiles,
A. Kinomura, R. Suzuki, T. Ohdaira, N. Oshima, K. Ito, Y. Kobayashi and
T. Iwai, Journal of Physics; Conference Series, 262 012029 (2011)
Depth profiling of defects in ion-implanted Ni and Fe by positron annihilation
measurements,
A. Kinomura, R. Suzuki, T. Ohdaira, N. Oshima, K. Ito and Y. Kobayashi, Surface and Coatings Technology, (2011)
Origins of low resistivity in Al ion-implanted ZnO bulk single crystals,
T. Oga, Y. Izawa, K. Kuriyama, K. Kushida and A. Kinomura, Journal of Applied Physics 109 123702 (2011)
Development of a dedicated superconducting accelerator for positron production,
B. E. O fRourke, N. Oshima, R. Kuroda, R. Suzuki, T. Ohdaira, A. Kinomura,
N. Hayashizaki, E. Minehara, H. Yamauchi, Y Fukamizu, M Shikibu, T Kawamoto
and Y. Minehara, Journal of Physics; Conference Series, 262 012043 (2011)
Simulations of slow positron production using a low-energy electron accelerator,
B. E. O fRourke, N. Hayashizaki, A. Kinomura, R. Kuroda, E. J. Minehara, T. Ohdaira, N. Oshima and R. Suzuki, Review of Scientific Instruments 82 063302 (2011)
Imaging of the distribution of average positron lifetimes using a positron
probe microanalyzer,
N. Oshima, R. Suzuki, T. Ohdaira, A. Kinomura, S. Kubota, H. Watanabe,
K. Tenjinbayashi, A. Uedono and M. Fujinami, Journal of Physics; Conference
Series, 262 012044 (2011)
Slow Positron Beam Apparatus for Surface and Subsurface Analysis of Samples
in Air,
N. Oshima, B. E. O fRourke, R. Kuroda, R. Suzuki, H. Watanabe, S. Kubota, K. Tenjinbayashi, A. Uedono and N. Hayashizaki, Applied Physics Express 4 066701 (2011)
Positron annihilation lifetime measurements of He-ion irradiated Fe using pulsed positron beam,
K. Sato, A. Kinomura, T. Omura, Q. Xu, T. Yoshiie, R. Kasada, A. Kimura
and K. Morishita, Journal of Physics; Conference Series, 262 012053 (2011)
Vacancy evolution in Ni during irradiation at high temperatures studied by in situ positron annihilation spectroscopy,
H. Tsuchida, T. Iwai, S. Kasai, H. Tanaka, N. Oshima, R. Suzuki, T. Yoshiie
and A. Itoh, Journal of Physics; Conference Series, 262 012060 (2011)
Application of positron annihilation technique to front and backend processes
for modern LSI devices,
A Uedono, S Ishibashi, N Oshima, T Ohdaira and R Suzuki, Journal of Physics;
Conference Series, 262 012061 (2011)
Study of
Positron Production System using Superconducting LINAC,
N. Hayashizaki, N. Oshima, B. O'Rourke, R. Kuroda, R. Suzuki and E. J.
Minehara, Proceedings of the International Particle Accelerator Conference
2010, pp14 (2010)
Diffusion of positrons in polymers studied by slow positron beam, @
H. Suzuki, K. Azami, S. Komagata, I. Kanazawa, R. Suzuki and T. Ohdaira,
Journal of Physics Conference Series 255, 012053 (2010)
Free volume behavior in
spincast thin film of polystyrene by energy variable positron annihilation
lifetime spectroscopy,
S. Ata, M. Muramatsu, J. Takeda, T. Ohdaira, R. Suzuki, K. Ito, Y. Kobayashi
and T. Ougizawa, Polymer 50, 3343 (2009)
Positron and ion-beam analyses of hydrogen-implanted Si: Characterization of vacancy- and interstitial-type defects,
A. Kinomura, R. Suzuki, T. Ohdaira, M. Muramatsu, C. He, N. Oshima, T. Matsumoto, H. Tanoue, Y. Horino,
Report of Research Center of Ion Beam Technology, Hosei University Supplement 27, 29 (2009)
Development of an RF Cavity for an Atmospheric Scanning Positron Microscope,
N. Hayashizaki, N. Oshima, R. Kuroda and R. Suzuki, Proceedings of Particle
Accelerator Society Meeting 2009, JAEA, pp1111 (2009)
Rapid three-dimensional imaging of defect distributions using a high-intensity positron microbeam,
N. Oshima, R. Suzuki, T. Ohdaira, A. Kinomura, T. Narumi, A. Uedono and M. Fujinami, Applied Physics Letters 94, 194104 (2009)
Development of Positron Microbeam in AIST,
N. Oshima, R. Suzuki, T. Ohdaira, A. Kinomura, T. Narumi, A. Uedono and
M. Fujinami, Materials Science Forum 607, 238 (2009)
Guiding of a Slow Positron Beam with a Glass Capillary,
N. Oshima, Y. Iwai, T. M. Kojima, T. Ikeda, Y. Kanazawa, M. Hoshino, R.
Suzuki and Y. Yamazaki, Materials Science Forum 607, 263 (2009)
A positron annihilation lifetime measurement system with an intense positron microbeam,
N. Oshima, R. Suzuki, T. Ohdaira, A. Kinomura, T. Narumi, A. Uedono and M. Fujinami, Radiation Physics and Chemistry 78, 1096 (2009)
A variable energy positron annihilation lifetime spectroscopy study of
physical aging in thin glassy polymer films,
B. W. Rowe, S. J. Pas, A. J. Hill, R. Suzuki, B. D. Freeman and D.R. Paul,
Polymer 50, 6149 (2009)
Recent progress in generation and application of AIST laser-Compton gamma-ray
beam,
H. Toyokawa, S. Goko, S. Hohara, T. Kaihori, F. Kaneko, R. Kuroda, N. Oshima,
M. Tanaka, M. Koike, A. Kinomura, H. Ogawa, N. Sei, R. Suzuki, T. Ohdaira,
K. Yamada and H. Ohgaki, Nuclear Instruments and Methods in Physics Research
A 608, S41 (2009)
Characterization of Low-k/Cu Damascene Structures Using Monoenergetic Positron
Beams,
A. Uedono, N. Inoue, Y. Hayashi, K. Eguchi, T. Nakamura, Y. Hirose, M.
Yoshimaru, N. Oshima, T. Ohdaira and R. Suzuki, Japanese Journal of Applied
Physics 48, 120222 (2009)
Point defects in group-III nitride semiconductors studied by positron annihilation,
A. Uedono, S. Ishibashi, T. Ohdaira and R. Suzuki, Journal of Crystal Growth 311, 3075 (2009)
Characterization of Low-k SiOCH Layers in Fine-Pitch Cu-Damascene Interconnects
by Monoenergetic Positron Beams,
A. Uedono, N. Inoue, Y. Hayashi, K. Eguchi, T. Nakamura, Y. Hirose, M.
Yoshimaru, N. Oshima, T. Ohdaira and R. Suzuki, Proceedings of the 2009
IEEE International Interconnect Technology Conference, pp75 (2009)
Evolution of pores in
mesoporous silica films: Porogen loading effect,
C. He, T. Oka, Y. Kobayashi, N. Oshima, T. Ohdaira, A. Kinomura, R. Suzuki,
Applied Surface Science 255, 183 (2008)
Temperature-dependent growth and transient state of hydrogen-induced nanocavities
in silicon,
A. Kinomura, R. Suzuki, T. Ohdaira, M. Muramatsu, C. He, N. Oshima, T. Matsumoto, H. Tanoue, and Y. Horino, Journal of Applied Physics 104, 034301 (2008)
Positron Trapping Sites Originating from Oxide Interfaces on 4H-SiC C(00011)- and Si(0001)-Faces,
A. Kinomura, R. Suzuki, N. Oshima, T. Ohdaira, S. Harada, M. Kato, Y. Tanaka,
A. Kinoshita and K. Fukuda, Japanese Journal of Applied Physics 47, 8391 (2008)
Application of positron beams to the study of positronium-forming solids,
Y. Kobayashi, K. Ito, T. Oka, C. He, H.F.M. Mohamed, R. Suzuki and T. Ohdaira,
Applied Surface Science 255, 174 (2008)
Positronium reemission yield from mesostructured silica films,
L. Liszkay, C. Corbel, P. Perez, P. Desgardin, M.-F. Barthe, T. Ohdaira, R. Suzuki, P. Crivelli, U. Gendotti, A. Rubbia, M. Etienne and A. Walcarius,
Applied Physics Letters 92, 063114 (2008)
Orthopositronium annihilation and emission in mesostructured thin silica and silicalite-1 films,
L. Liszkay, M.-F. Barthe, C. Corbel, P. Crivelli, P. Desgardin, M. Etienne,
T. Ohdaira, P. Perez, R. Suzuki, V. Valtchev and A. Walcarius, Applied
Surface Science 255, 187 (2008)
Ortho-Positronium Reemission Yield and Energy in Surfactant-Templated Mesoporous
Silica Films,
L. Lizkay, C. Corbel, P. Perez, P. Desgardin, M. F. Barthe, T. Ohdaira,
R. Suzuki, P. Crivelli, U. Gendotti, A. Rubbia, M. Etienne and A. Walcarius,
Material Science Forum 607, 30 (2008)
Further search for selectivity of positron annihilation in the skin and
cancerous systems,
G. Liu, H. Chen, L. Chakka, M.-L. Cheng, J. E. Gadzia, R. Suzuki, T. Ohdaira, N. Oshima and Y. C. Jean, Applied Surface Science 255, 115 (2008)
Brightness enhancement method for a high-intensity positron beam produced by an electron accelerator,
N. Oshima, R. Suzuki, T. Ohdaira, A. Kinomura, T. Narumi, A. Uedono and
M. Fujinami, Journal of Applied Physics 103, 094916 (2008)
A scheme to produce the antihydrogen ion (H)over-bar(+) for gravity measurements,
P. Perez, L. Liszkay, M.-F. Barthe, J. P. Boilot, M. Carty, C. Corbel,
P. Crivelli, A. Curtoni, O. Delferrierre, P. Desgardin, M. Etienne, U.
Gendottif, M. Hassan, A. Mohri, T. Ohdaira, J. M. Rey, A. Rubbia, H. D.
Saitoh, Y. Sauce, R. Suzuki, A. Walcarius, Y. Yamazaki, Cold Antimatter
Plasmas and Application to Fundamental Physics, AIP Conference Proceedings
1037, 35 (2008)
Annihilation characteristics of positrons in free-standing thin metal and
polymer films,
A. Uedono, K. Ito, H. Nakamori, S. Ata, T. Ougizawa, K. Ito, Y. Kobayashi, X. Cao, T. Kurihara, N. Oshima, T. Ohdaira, R. Suzuki,
T. Akahane, M. Doyama, K. Matsuya, S. Jinno and M. Fujinami, Nuclear Instruments and Methods in Physics Research B 266, 750 (2008)
Free-Volume Depth Profile of Polymeric Membranes Studied by Positron Annihilation
Spectroscopy: Layer Structure from Interfacial Polymerization,
H. Chen, W.-S. Hung, C.-H. Lo, S.-H. Huang, M.-L. Cheng, G. Liu, K.-R.
Lee, J.-Y. Lai, Y.-M. Sun, C.-C. Hu, R. Suzuki, T. Ohdaira, N. Oshima and
Y. C. Jean, Macromolecules 40, 7542
Positronium annihilation and pore surface chemistry in mesoporous silica films,
C. He, T. Oka, Y. Kobayashi, N. Oshima, T. Ohdaira, A. Kinomura and R. Suzuki, Applied Physics Letters 91, 024102 (2007)
Tunable pores in mesoporous silica films studied using a pulsed slow positron beam,
C. He, M. Muramatsu, T. Ohdaira, N. Oshima, A. Kinomura, R. Suzuki and
Y. Kobayashi, Radiation Physics and Chemistry 76, 204 (2007)
Variable-energy positron annihilation study of subnanopores in SiOCH-based
PECVD films,
K. Ito, T. Oka, Y. Kobayashi, R. Suzuki and T. Ohdaira, Radiation Physics
and Chemistry 76, 213 (2007)
Positronium formation in fused quartz: Experimental evidence of delayed formation,
Y. Komuro, T. Hirade, R. Suzuki, T. Ohdaira and M. Muramatsu, Radiation Physics and Chemistry 76, 330 (2007)
Design of a liquidless superconducting accelerator for positron annihilation
lifetime spectroscopy,
N. Oshima, R. Kuroda, C. He, A. Kinomura, T. Ohdaira, H. Toyokawa, R. Suzuki,
N. Hayashizaki and T. Hattori, phys. stat. sol. (c) 4, 4023 (2007)
Cu/Barrier metal stack film characterization for reliability estimation,
S. Ogawa, T. Ohdaira, N. Hosoi, N. Tarumi, R. Suzuki and S. Saito, Proceedings
of the IEEE 2007 International Interconnect Technology Conference, pp52-54 (2007)
Development of a Na-22 based pulsed slow positron beam for depth-selective PALS,
T. Ohdaira, M. Muramatsu, R. Suzuki, Y. Kobayashi, M. Takanawa, N. Hashimoto, K. Takao and Y. Kobayashi, phys. stat. sol. (c) 4, 4020 (2007)
Defects in Electroplated Cu and Their Impact on Stress Migration Reliability
Studied using Monoenergetic Positron Beams,
A. Uedono, T. Suzuki, T. Nakamura, T. Ohdaira and R. Suzuki, Japanese Journal
of Applied Physics 46, 1983 (2007)
Characterization of Metal/High-k Structures Using Monoenergetic Positron Beams,
A. Uedono, T. Naito, T. Otsuka, K. Ito, K. Shiraishi, K. Yamabe, S. Miyazaki, H. Watanabe, N. Umezawa, T. Chikyow, T. Ohdaira, R. Suzuki, Y. Akasaka, S. Kamiyama, Y. Nara and K. Yamada, Japanese Journal of Applied Physics 46, 3214 (2007)
Impact of Residual Impurities on Annealing Properties of Vacancies in Electroplated
Cu Studied Using Monoenergetic Positron Beams,
A. Uedono, K. Mori, K. Ito, K. Imamizu, T. Hachiya, H. Kamijo, M. Hasunuma,
H. Kaneko, H. Toyoda, T. Ohdaira and R. Suzuki, Japanese Journal of Applied
Physics 46, L483 (2007)
Study of high-k gate dielectrics by means of positron annihilation,
A. Uedono, T. Naito, T. Otsuka, K. Ito, K. Shiraishi, K. Yamabe, S. Miyazaki,
H. Watanabe, N. Umezawa, A. Hamid, T. Chikyow, T. Ohdaira, R. Suzuki, S.
Ishibashi, S. Inumiya, S. Kamiyama, Y. Akasaka, Y. Nara and K. Yamada,
phys. stat. sol. (c) 4, 3599 (2007)
Vacancy-fluorine complexes and their impact on the properties of metal-oxide transistors with high-k gate dielectrics studied using monoenergetic positron beams,
A. Uedono, S. Inumiya, T. Matsuki, T. Aoyama, Y. Nara, S. Ishibashi, T. Ohdaira, R. Suzuki, S. Miyazaki and K. Yamada, Journal of Applied Physics 102, 054511 (2007)
Annealing properties of open volumes in strained SiN films studied by monoenergetic
positron beams,
A. Uedono, K. Ito, T. Narumi, M. Sometani, K. Yamabe, Y. Miyagawa, T. Murata,
K. Honda, N. Hattori, M. Matsuura, K. Asai, T. Ohdaira and R. Suzuki, Journal
of Applied Physics 102, 064513 (2007)
Annealing properties of vacancy-type defects in ion-implanted GaN studied by monoenergetic positron beams,
A. Uedono, K. Ito, H. Nakamori, K. Mori, Y. Nakano and T. Kachi, S. Ishibashi,
T. Ohdaira and R. Suzuki, Journal of Applied Physics 102, 084505 (2007)
Free-volume distribution and glass transition of nano-scale polymeric films,
J. Zhang, H. Chen, Y. Li, R. Suzuki, T. Ohdaira and Y. C. Jean, Radiation Physics and Chemistry 76, 172 (2007)
Studying conductive polymer coating (BAM-PPV) using positron annihilation spectroscopy,
R. Zhang, P. M. Johnson, R. J. Deluca, T. D. Alger, J. Xu, R. Suzuki, T.
Ohdaira, and Y. C. Jean, phys. stat. sol. (c) 4, 3789 (2007)
Positron annihilation
studies of mesoporous silica films using a slow positron beam,
C. He, M. Muramatsu, T. Ohdaira, A. Kinomura, R. Suzuki, K. Ito, Y. Kobayashi,
Applied Surface Science 252, 3221 (2006)
Ageing-induced enhancement of open porosity of mesoporous silica films
studied by positron annihilation spectroscopy,
C. He, M. Muramatsu, N. Oshima, T. Ohdaira, A. Kinomura and R. Suzuki,
Physics Letters A 355, 73 (2006)
Structure of SiO2/4H-SiC interface probed by positron annihilation spectroscopy,
M. Maekawa, A. Kawasuso, M. Yoshikawa, A. Miyashita, R. Suzuki, T. Ohdaira, Physical Review B 73, 14111 (2006)
Defect layer in SiO2–SiC interface proved by a slow positron beam,
M. Maekawa, A. Kawasuso, M. Yoshikawa, A. Miyashita, R. Suzuki, T. Ohdaira,
Physica B 376-377, 354 (2006)
Porogen Approach for the Fabrication of Plasma-Polymerized Nanoporous Polysiloxane
Films,
T. Oka, K. Ito, M. Muramatsu, T. Ohdaira, R. Suzuki and Y. Kobayashi, Journal
of Physical Chemistry B 110, 20172 (2006)
Characterization of HfSiON gate dielectrics using monoenergetic positron
beams,
A. Uedono, K. Ikeuchi, T. Otsuka, K. Shiraishi, K. Yamabe, S. Miyazaki,
N. Umezawa, A. Hamid, T. Chikyow, T. Ohdaira M. Muramatsu, R. Suzuki, S.
Inumiya, S. Kamiyama, Y. Akasaka, Y. Nara and K. Yamada, Journal of Applied
Physics 99, 054507 (2006)
Vacancy-impurity complexes in polycrystalline Si used as gate electrodes
of HfSiON-based metal-oxide-semiconductors probed using monoenergetic positron
beams,
A. Uedono, K. Ikeuchi, T. Otsuka, K. Yamabe, K. Eguchi, M. Takayanagi, S. Ishibashi, T. Ohdaira, M. Muramatsu and R. Suzuki, Journal of Applied Physics 100, 034509 (2006)
Introduction of defects into HfO2 gate dielectrics by metal-gate deposition studied using x-ray photoelectron spectroscopy and positron annihilation,
A. Uedono, T. Naito, T. Otsuka, K. Shiraishi, K. Yamabe, S. Miyazaki, H.
Watanabe, N. Umezawa, T. Chikyow, Y. Akasaka, S. Kamiyama, Y. Nara and
K. Yamada, Journal of Applied Physics 100, 064501 (2006)
Open volumes in SiN films for strained Si transistors probed using monoenergetic
positron beams,
A. Uedono, K. Ikeuchi, T. Otsuka, K. Ito, K. Yamabe, M. Kohno, T. Moriya,
N. Okumura, T. Nakanishi, T. Arikado, T. Ohdaira, and R. Suzuki, Applied
Physics Letters 88, 252107 (2006)
Slow positron beam study of corrosion-related defects in pure iron,
Y. C. Wu, Y. Q. Chen, B. Wang, S. J. Wang, Y. C. Jean, R. Suzuki and T. Ohdaira, Applied Surface Science 252, 3274 (2006)
Interaction of nitrogen with vacancy
defects in N+-implanted ZnO studied using a slow positron beam,
Z. Q. Chen, M. Maekawa, A. Kawasuso, R. Suzuki and T. Ohdaira, Applied
Physics Letters 87, 91910 (2005)
Microvoid formation in hydrogen-implanted ZnO probed by a slow positron
beam,
Z. Q. Chen, A. Kawasuso, Y. Xu, H. Naramoto, X. L. Yuan, T. Sekiguchi, R. Suzuki and T. Ohdaira, Physical Review B 71, 115213 (2005)
Production and recovery of defects in phosphorus-implanted ZnO,
Z. Q. Chen, A. Kawasuso, Y. Xu, H. Naramoto, X. L. Yuan, T. Sekiguchi,
R. Suzuki and T. Ohdaira, Journal of Applied Physics 97, 013528 (2005)
PALS and SPM/EFM investigation of charged nanoporous electret films,
D.-M. Chiang, W.-L. Liu, J.-L. Chen and R. Suzuki, Chemical Physics Letters
412, 50 (2005)
Structural defects in SiO2/SiC interface probed by a slow positron beam,
M. Maekawa, A. Kawasuso, Z. Q. Chen, M. Yoshikawa, R. Suzuki, T. Ohdaira, Applied Surface Science 244, 322 (2005)
Reemission of positrons from mesh and powder moderators,
M. Muramatsu, T. Ohdaira and R. Suzuki, Japanese Journal of Applied Physics
44, 6283 (2005)
Fabrication of Microparticle Layer by Annealing Microparticle/Polymer Composite,
M. Muramatsu, T. Ohdaira and R. Suzuki, Japanese Journal of Applied Physics
44, L268 (2005)
Behavior of vacancies in EP-Cu films by positron-annihilation lifetime
spectroscopy and its impact on SIV phenomena,
S. Ogawa, F. Shoji, T. Ohdaira, I. Suzuki, M. Shimada and R. Suzuki, Proceedings of the IEEE 2005 International Interconnect Technology Conference, pp99 (2005)
Behaviors of vacancies in electro-plated Cu films by positron-annihilation
lifetime spectroscopy correlated with SIV phenomena,
F. Shoji, T. Ohdaira, I. Suzuki, M. Shimada, R. Suzuki and S. Ogawa, Advanced
Metallization Conference 2004 (AMC 2004) 313 (2005) 160
Low-k SiOCH film deposited by plasma-enhanced chemical vapor deposition using hexamethyldisiloxane and water vapor,
Y. Shioya, H. Shimoda, K. Maeda, T. Ohdaira, R. Suzuki and Y. Seino, Japanese
Journal of Applied Physics 44, 3879 (2005)
Vacancy-type defects in strained-Si layers deposited on SiGe/Si structures probed by using monoenergetic positron beams,
A. Uedono, N. Hattori, H. Naruoka, S. Ishibashi, R. Suzuki and T. Ohdaira,
Journal of Applied Physics 97, 023532 (2005)
Vacancy-type defects in Si-doped InN grown by plasma-assisted molecular-beam
epitaxy probed using monoenergetic positron beams,
A. Uedono, S. F. Chichibu, M. Higashiwaki, T. Matsui, T. Ohdaira and R.
Suzuki, Journal of Applied Physics 97, 043514 (2005)
Defects introduced into electroplated Cu films during room-temperature
recrystallization probed by a monoenergetic positron beam,
A. Uedono, T. Suzuki, T. Nakamura, T. Ohdaira and R. Suzuki, Journal of Applied Physics 98, 043504 (2005)
Characterization of Open Spaces in High-k Materials by Monoenergetic Positron Beams (in Japanese),
A. Uedono, M. Goto, K. Higuchi, K. Ikeuchi, A. H. A. Salah, K. Yamabe,
K. Shiraishi, T. Chikyo, K. Yamada, H. Kitajima, R. Mitsuhashi, A. Horiuchi,
K. Torii, T. Arikado, R. Suzuki and T. Ohdaira, Journal of the Surface
Science Society of Japan 26, 268 (2005)
Estimation
of Ni / Polyethylene Bilayer by Slow Positron Beam,
K. Azami, M. Habu, K. Takagi, I. Kanazawa, R. Suzuki and T. Ohdaira, Materials
Science Forum 445-446, 42 (2004)
Characterization of free volume and density gradients of polystyrene surfaces
by low-energy positron lifetime measurements,
J. Algers, R. Suzuki, T. Ohdaira and F. H. J. Maurer, Polymer
45, 4533 (2004)
Influence of defect-impurity complexes on slow positron yield of a tungsten moderator: Positron annihilation, Auger, and SIMS study,
G. Amarendra, R. Rajaraman, S. Rajagopalan, R. Suzuki and T. Ohdaira, Physical
Review B 69, 094105 (2004)
Evolution of voids in Al+-implanted ZnO probed by a slow positron beam,
Z. Q. Chen, M. Maekawa, S. Yamamoto, A. Kawasuso, X. L. Yuan, T. Sekiguchi, R. Suzuki and T. Ohdaira, Physical Review B 69, 035210 (2004)
Ion-Implantation Induced Defects in ZnO Studied by a Slow Positron Beam,
Z.Q. Chen, M. Maekawa, T. Sekiguchi, R. Suzuki and A. Kawasuso, Materials
Science Forum 445-446, 57 (2004)
Durability and Free Volume in Polymeric Coatings Studied by Positron Annihilation Spectroscopy,
H. Chen, R. Zhang, Y. Li, J. J. Zhang, Y.C. Wu, T.C. Sandreczki, P.E. Mallon,
T. Ohdaira, R. Suzuki, X. Gu, T. Nguyen and Y.C. Jean, Materials Science
Forum 445, 274 (2004)
Identification of vacancy-oxygen complexes in oxygen-implanted silicon
probed with slow positrons,
M. Fujinami, T. Miyagoe, T. Sawada, R. Suzuki, T. Ohdaira and T. Akahane, Journal of Applied Physics 95, 3404 (2004)
Depth Dependence of Defects in Ion-Implanted Si Probed by a Positron Beam,
M. Fujinami, T. Miyagoe, T. Sawada, R. Suzuki, T. Ohdaira and T. Akahane,
Material Science Forum 445, 78 (2004)
Positron Annihilation Methods by -Rays Produced in Laser-Induced Compton-Backscattering,
T. Hirade, H. Toyokawa, T. Ohdaira, R. Suzuki and H. Ohgaki, Materials
Science Forum 445-446, 474 (2004)
Characterization of porous silicate low-k films by ellipsometric porosimetry
and variable-energy positron annihilation spectroscopy,
K. Ito, Y. Kobayashi, R. Suzuki, T. Ohdaira, Y. Runsheng, K. Sato, K. Hirata,
H. Togashi, M. Egami, H. Arao, A. Nakashima and M. Komatsu, Continuous
Nanophase and Nanostructured Materials Symposium, Mater. Res. Soc. Symposium
Proceedings 788, 397 (2004)
The Depth Profile of Free Volume in Drug Delivery Polymers Studied by Positron Annihilation Spectroscopy,
Y. Li, R. Zhang, H. Chen, J. Zhang, R. Suzuki, T. Ohdaira, M.M. Feldstein
and Y.C. Jean, Materials Science Forum 445-446, 319 (2004)
Positron Beam Study of Defects Induced in Ar-Implanted Si,
T. Miyagoe, M. Fujinami, T. Sawada, R. Suzuki, T. Ohdaira and T. Akahane, Materials Science Forum 445-446, 150 (2004)
Positron annihilation lifetime spectroscopy of porous low-k films with
periodic pore structures,
T. Ohdaira, R. Suzuki, H. Shirataki, and S. Matsuno, Materials Science
Forum 445-446, 334 (2004)
Properties of low-k Cu barrier SiOCNH film deposited by plasma-enhanced
chemical vapor deposition using hexamethyldisiloxane and ammonia gases,
Y. Shioya, K. Maeda, T. Ishimaru, H. Ikakura, T. Masubuchi, T. Ohdaira
and R. Suzuki, Japanese Journal of Applied Physics 43, 750 (2004)
Copper barrier properties of low dielectric constant SiOCNH film deposited
by plasma-enhanced CVD,
Y. Shioya, T. Ishimaru, H. Ikakura, Y. Nishimoto, T. Ohdaira, R. Suzuki and K. Maeda, Journal of the Electrochemical Society 151, C56 (2004)
Positron and positronium annihilation in low-dielectric-constant films
studied by a pulsed positron beam,
R. Suzuki, T. Ohdaira, Y. Kobayashi, K. Ito, R. S. Yu, Y. Shioya, H. Ichikawa,
H. Hosomi, K. Ishikiriyama, H. Shirataki, S.-Y. Matsuno and J. Xu, Materials
Science Forum 445-446, 224 (2004)
Characterization of Hf0.3Al0.7Ox fabricated by atomic-layer-deposition technique using monoenergetic positron beams,
A. Uedono, M. Goto, K. Higuchi, K. Shiraishi, K. Yamabe, H. Kitajima, R.
Mitsuhashi, A. Horiuchi, K. Torii, T. Arikado, R. Suzuki, T. Ohdaira and
K. Yamada, Japanese Journal of Applied Physics 43, 7848 (2004)
Characterizing metal-oxide semiconductor structures consisting of HfSiOx
as gate dielectrics using monoenergetic positron beams,
A. Uedono, N. Hattori, A. Ogura, J. Kudo, S. Nishikawa, T. Ohdaira, R. Suzuki and T. Mikado, Japanese Journal of Applied Physics 43, 1254 (2004)
Point defects in thin HfAlOx films probed by monoenergetic positron beams,
A. Uedono, R. Mitsuhashi, A. Horiuchi, K. Torii, K. Yamabe, K. Yamada,
R. Suzuki, T. Ohdaira and T. Mikado, Fundamentals of Novel Oxide/Semiconductor
Interfaces Symposium, Material Research Society Symposium Proceedings 786, 43 (2004)
Characterization of Photoresists for ArF-Excimer Laser Lithography Using Monoenergetic Positron Beams,
A. Uedono, T. Ohdaira, R. Suzuki, T. Mikado, S. Fukui, S. Kimura, H. Miyamoto
and H. Nemoto, Journal of Polymer Science B 42, 341 (2004)
Positronium Time-Of-Flight Measurements of Porous Silsesquioxane Films,
R. S. Yu, T. Ohdaira, Y. Kobayashi, R. Suzuki, K. Ito, K. Hirata and K. Sato, Materials Science Forum 445-446, 361 (2004)
Positron Annihilation Study on Hydrogen-Induced Defects in AISI 304 Stainless
Steel,
Y.C. Wu, X.H. Zhang, Y.C. Jean, R. Suzuki and T. Ohdaira, Materials Science
Forum 445-446, 213 (2004)
Depth Profiling of Ultra-Thin Polymer Films on Substrates Studied by Positron Annihilation Spectroscopy,
J. Zhang, H. Chen, R. Zhang, Y. Li, R. Suzuki, T. Ohdaira and Y.C. Jean,
Materials Science Forum 445, 367 (2004)
Helium ion implantation-induced
defects in silicon probed with variable-energy positrons,
M. Fujinami, T. Miyagoe, T. Sawada, R. Suzuki, T. Ohdaira and T. Akahane, Physical Review B 68, 165332 (2003)
A positron beam study of vacancy-impurity complexes in inert gas ion-implanted
silicon,
M. Fujinami, T. Miyagoe, T. Sawada, R. Suzuki, T. Ohdaira and T. Akahane,
Physica B 340-342, 724 (2003)
Properties of low-k copper barrier SiOCH film deposited by PECVD using hexamethyldisiloxane and N2O,
T. Ishimaru, Y. Shioya, H. Ikakura, M. Nozawa, S. Ohgawara, T. Ohdaira,
R. Suzuki and K. Maeda, Journal of the Electrochemical Society 150, F83 (2003)
Study of pore architecture in silicon oxide thin films by variable-energy
positron annihilation spectroscopy,
K. Ito, Y. Kobayashi, Y. Runsheng, K. Hirata, H. Togashi, R. Suzuki, T. Ohdaira, M. Egami, H. Arao, C. Sakurai, A. Nakashima and M. Komatsu,
Structure-Property Relationships of Oxide Surfaces and Interfaces II. Symposium, Materials Research Society Symposium Proceedings 751, 97 (2003)
Mesoporous low-k hydrogen-silsesquioxane
films characterized by positron annihilation and other techniques,
K. Ito, Y. Kobayashi, K. Hirata, H. Togash, R. Suzuki, T. Ohdaira, Radiation
Physics and Chemistry 68, 435 (2003)
Positron studies of polymeric coatings,
Y. C. Jean, P. E. Mallon, R. Zhang, H. Chen, Y. Li, J. Zhang, Y. C. Wu,
T. C. Sandreczki, R. Suzuki, T. Ohdaira, X. Gu and T. Nguyen, Radiation
Physics and Chemistry 68, 395 (2003)
Depth Profile of Free Volume in a Mixture and Copolymers of Poly(N-vinyl-pyrrolidone)
and Poly(ethylene glycol) Studied by Positron Annihilation Spectroscopy,
Y. Li, R. Zhang, H. Chen, J. Zhang, R. Suzuki, T. Ohdaira, M. M. Feldstein and Y. C. Jean, Biomolecules 4, 1856 (2003)
Salt weathering effect of polymer coatings studied by positron annihilation
spectroscopy,
Y. Li, Y. C. Wu, R. Zhang, H. Chen, J. Zhang, R. Suzuki, T. C. Sandreckzki,
T. Ohdaira and Y. C. Jean, Radiation Physics and Chemistry 68, 581 (2003)
Positron and positronium annihilation in silica-based thin films studied by a pulsed positron beam,
R. Suzuki, T. Ohdaira, Y. Kobayashi, K. Ito, Y. Shioya, T. Ishimaru, Radiation
Physics and Chemistry 68, 339 (2003)
Characterization of surfaces and subsurfaces by an intense positron beam,
R. Suzuki and T. Ohdaira, Proceedings of the 3rd International Symposium on Material Chemistry in Nuclear Environment, JAERI-Conf-2003-001 pp.189 (2003) Full
Conference Proceedings (30MB)
Defects introduced into SrTiO3 by auto-feeding epitaxy studied using positron
annihilation technique,
A. Uedono, M. Kiyohara, K. Shimoyama, K. Yamabe, T. Ohdaira, R. Suzuki,
T. Mikado, Materials Science in Semiconductor Processing 6, 367 (2003)
Study of defects in MOS structures using HfAlOx gate dielectric by means of positron annihilation,
A. Uedono, R. Mitsuhashi, A. Horiuchi, K. Torii, K. Yamabe, K. Yamada,
R. Suzuki, T. Ohdaira, and T. Mikado, Extended Abstracts of International
Workshop on Gate Insulator (IEEE Cat. No.03EX765). IEEE. 2003, pp. 120-2.
(2003)
Hydrogen-terminated defects in ion-implanted silicon probed by monoenergetic
positron beams,
A. Uedono, T. Mori, K. Morisawa, K. Murakami, T. Ohdaira, R. Suzuki, T. Mikado, K. Ishioka, M. Kitajima, S. Hishita, H. Haneda and I. Sakaguchi, Journal of Applied Physics 93, 3228 (2003)
Characterization of nanoparticle and porous ultra low-k using positron beam,
J. Xu, J. Moxom, R. Suzuki, T. Ohdaira and A.P. Mills Jr., Proceedings
of the 3rd International Symposium on Material Chemistry in Nuclear Environment,
JAERI-Conf-2003-001 pp.118 (2003)Full
Conference Proceedings (30MB)
Positronium time-of-flight measurements of porous low-k films,
R. S. Yu, T. Ohdaira, R. Suzuki, K. Ito, K. Hirata, K. Sato, Y. Kobayashi
and J. Xu, Applied Physics Letters 83, 4966 (2003)
Surface and interfacial effect on polymer glass transition temperature
studied by positron annihilation,
J. Zhang, R. Zhang, H. Chen, Y. Li, Y. C. Wu, R. Suzuki, T. C. Sandreckski, T. Ohdaira and Y. C. Jean, Radiation Physics and Chemistry 68, 535 (2003)
Mechanical durability of polymeric coatings studied by positron annihilation spectroscopy:
correlation between cyclic loading and free volumes,
H. Chen, Q. Peng, Y. Y. Huang, R. Zhang, P. E. Mallon, J. Zhang, Y. Li,
Y. Wu, J. R. Richardson, T. C. Sandreczki, Y. C. Jean, R. Suzuki and T.
Ohdaira, Applied Surface Science 194, 168 (2002)
Oxygen-related defects and their annealing behavior in low-dose separation-by-implanted
oxygen (SIMOX) wafers studied by slow positron beams,
Z. Q. Chen, A. Uedona, A. Ogura, H. Ono, R. Suzuki, T. Ohdaira and T. Mikado,
Applied Surface Science 194, 112 (2002)
Nanoporous structure of sputter-deposited silicon oxide films characterized
by positronium annihilation spectroscopy,
Y. Kobayashi, W. Zheng, T. B. Chang, K. Hirata, R. Suzuki, T. Ohdaira and K. Ito, Journal of Applied Physics 91, 1704 (2002)
Durability of polymeric coatings: effects of natural and artificial weathering,
P. E. Mallon, Y. Li, R. Zhang, H. Chen, Y. Wu, T. C. Sandreczki, Y. C.
Jean, R. Suzuki and T. Ohdaira, Applied Surface Science 194, 176 (2002)
Characterization of Mg doped GaN by positron annihilation spectroscopy,
J. Moxom, J. Xu, R. Suzuki, T. Ohdaira, G. Brandes and J. S. Flynn, Journal
of Applied Physics 92, 1898 (2002)
Surface analysis of a well-aligned carbon nanotube film by positron-annihilation
induced Auger-electron spectroscopy,
T. Ohdaira, R. Suzuki, Y. Kobayashi, T. Akahane and L. Dai, Applied Surface Science 194, 291 (2002)
Analysis of pore and pore-related properties in plasma-enhanced chemical vapor deposition low dielectric constant films,
Y. Shioya, K. Maeda, T. Ishimaru, T. Ohdaira and R. Suzuki, Journal of
the Electrochemical Society 149, F103 (2002)
Positron annihilation in SiO2-Si studied by a pulsed slow positron beam<,
R. Suzuki, T. Ohdaira, A. Uedono and Y. Kobayashi, Applied Surface Science
194, 89 (2002)
Formation of hydrogen-induced vacancies during growth of the Fe layer studied
by slow positron beam,
K. Takagi, N. Furukawa, I. Kanazawa, R. Suzuki and T. Ohdaira, Surface Science 514, 298 (2002)
Vacancy-type defects in BaTiO3/SrTiO3 structures probed by monoenergetic positron beams,
A. Uedono, K. Shimoyama, M. Kiyohara, Z. Q. Chen, K. Yamabe, T. Ohdaira,
R. Suzuki and T. Mikado, Journal of Applied Physics 91, 5307 (2002)
Defects in silicon-on-insulator wafers and their hydrogen interaction studied
by monoenergetic positron beams,
A. Uedono, Z. Q. Chen, A. Ogura, R. Suzuki, T. Ohdaira and T. Mikado, Journal
of Applied Physics 91, 6488 (2002)
Oxygen-related defects in silicon-on-insulator wafers probed monoenergetic
positron beams,
A. Uedono, H. Yamamoto, A. Nakano, A. Ogura, T. Ohdaira, R. Suzuki and T. Mikado, SOI Conference, IEEE International 2002, 196 (2002)
Porosity in porous methyl-silsesquioxane (MSQ) films,
J. Xu, J. Moxom, S. Yang, R. Suzuki and T. Ohdaira, Applied Surface Science
194, 189 (2002)
Quantum Antidot Formation and Correlation to Optical Shift of Gold Nanoparticles
Embedded in MgO,
J. Xu, J. Moxom, S. H. Overbury, C.W. White, A. P. Mills, Jr. and R. Suzuki,
Physical Review Letters 88, 175502 (2002)
Dependence of porosity in methyl-silsesquioxane thin films on molecular
weight of sacrificial triblock copolymer,
J. Xu, J. Moxom, S. Yang, R. Suzuki and T. Ohdaira, Chemical Physics Letters 364, 309 (2002)
Identification of open-volume
defects in disordered and amorphized Si: A depth-resolved positron annihilation
study,
G. Amarendra, R. Rajaraman, G. V. Rao, K. G. M. Nair, B. Viswanathan, R.
Suzuki, T. Ohdaira and T. Mikado, Physical Review B 63, 2241121
Positron beam Doppler and lifetime studies on disordered and amorphous
Si,
G. Amarendra, R. Rajaraman, G. V. Rao, K.G.M. Nair, B. Viswanathan, R.
Suzuki, T. Ohdaira and T. Mikado, Materials Science Forum 363-365, 129 (2001)
New measurement technique of pore size distribution of porous low-k film,
S. Kawamura, K. Maekawa, T. Ohta, K. Omote, R. Suzuki, T. Ohdaira, M. Tachibana and K. Suzuki K, Interconnect Technology Conference, Proceedings of the IEEE 2001 International 195 (2001)
A new measurement technique of pore size distribution of porous low-k films,
S. Kawamura, T. Ohta, K. Omote, Y. Ito, R. Suzuki and T. Ohdaira, Advanced
Metallization Conference 2001, Materials Research Society Proceedings V-17, 331 (2001)
The estimation of the vacancy-type defects density in thin Fe film with
slow positron beams,
T. Nagata, Y. Terashima, K. Takagi, T. Kawai, I. Kanazawa, R. Suzuki, T.
Ohdaira, F. Komori and Y. Ito, Materials Science Forum 363-365, 490 (2001)
Anion vacancies in CuInSe2,
S. Niki, R. Suzuki, S. Ishibashi, T. Ohdaira, P. J. Fons, A. Yamada, H. Oyanagi, T. Wada, R. Kimura and T. Nakada, Thin Solid Films 387, 129 (2001)
Time-of-flight analysis of positron-annihilation induced Auger-electrons
and re-emitted positrons,
T. Ohdaira, R. Suzuki and T. Mikado, Materials Science Forum 363-365, 542 (2001)
Study of Buried Polymer-Polymer Interfaces Using Slow Positron Beams,
P.K. Pujari, M. Tashiro, Y. Honda, R. Suzuki and S. Tagawa, Materials Science
Forum 363-365, 618 (2001)
Positron-annihilation studies of rhombic triacontahedral-type icosahedral quasicrystals and their 1/1 and 2/1 approximants in the Al-Mg-Zn alloy system,
K. Sato, H. Uchiyama, Y. Takahashi, I. Kanazawa, R. Suzuki, T. Ohdaira, T. Takeuchi, T. Mizuno and U. Mizutani, Physical Review B 64, 0242021 (2001)
Determination of structural vacancy densities in icosahedral quasicrystals
by slow positron beam technique,
K. Sato, H. Uchiyama, Y. Takahashi, I. Kanazawa, R. Tamura, K. Kimura,
F. Komori, R. Suzuki, T. Ohdaira and S. Takeuchi, Materials Science Forum
363-365, 481 (2001)
Aluminum based quasicrystals studied by slow positron beam technique,
K. Sato, H. Uchiyama, I. Kanazawa, R. Tamura, K. Kimura, F. Komori, R.
Suzuki, T. Ohdaira and S. Takeuchi, Quasicrystals - Preparation,
Properties and Applications, Materials Research Society Proceedings 643, K9.10.1 (2001)
Development of high-rate age-momentum correlation system with a variable-energy pulsed positron beam,
R. Suzuki, T. Ohdaira, T. Mikado and G. V. Rao, Materials Science Forum 363-365, 661 (2001)
Pore characteristics of low-dielectric-constant films grown by plasma-enhanced
chemical vapor deposition studied by positron annihilation lifetime spectroscopy,
R. Suzuki, T. Ohdaira, Y. Shioya and T. Ishimaru, Japanese Journal of Applied
Physics 40, L414 (2001)
A study of vacancy-type defects introduced by the carburization of Si by
monoenergetic positron beams,
A. Uedono, M. Muramatsu, T. Ubukata, M. Watanabe, T. Ichihashi, R. Suzuki,
T. Ohdaira, T. Mikado and S. Takasu, Journal of Applied Physics 89, 3606 (2001)
Study of defects in GaN grown by the two-flow metalorganic chemical vapor deposition technique using monoenergetic positron beams,
A. Uedono, S. F. Chichibu, Z. Q. Chen, M. Sumiya, R. Suzuki, T. Ohdaira, T. Mikado, T. Mukai and S. Nakamura, Journal of Applied Physics 90, 181 (2001)
Nanoporous structure of methyl-silsesquioxane films using monoenergetic
positron beams,
A. Uedono, Z. Q. Chen, R. Suzuki, T. Ohdaira, T. Mikado, S. Fukui, A. Shiota
and S. Kimura, Journal of Applied Physics 90, 2498 (2001)
Oxygen-related defects in low-dose separation-by-implanted oxygen wafers
probed by monoenergetic positron beams,
A. Uedono, Z. Q. Chen, A. Ogura, H. Ono, R. Suzuki, T. Ohdaira, T. Mikado,
Journal of Applied Physics 90, 6026 (2001)
Characterization of low temperature grown Si layer for SiGe pseudo-substrates by positron annihilation spectroscopy,
T. Ueno, T. Irisawa, Y. Shiraki, A. Uedono, S. Tanigawa, R. Suzuki, T. Ohdaira and T. Mikado, Journal of Crystal Growth 227-228, 761 (2001)
Nanostructure of thin amorphous hydrogenated carbon films studied by positron
annihilation and photoluminescence,
C. L. Wang, Y. Kobayashi, R. Katoh, R. Suzuki and T. Ohdaira, Journal of
Applied Physics 90, 404 (2001)
Nanometer-scale voids in PECVD silicon-oxide films probed by variable-energy
positron lifetime spectroscopy: a comparison with infrared spectroscopy,
C. L. Wang, Y. Kobayashi, K. Hirata, R. Suzuki, T. Ohdaira and T. Mikado,
Radiation Physics and Chemistry 60, 545 (2001)
Deterioration of a polyurethane coating studied by positron annihilation spectroscopy: correlation with surface properties,
Y. C. Wu, C-M. Huang, Y. Li, R. Zhang, H. Chen, P. E. Mallon, J. Zhang, T. C. Sandreczki, D-M. Zhu, Y. C. Jean, R. Suzuki and T. Ohdaira, Journal of Polymer Science 39, 2290 (2001)
Positronic probe of vacancy defects on surfaces of Au nanoparticles embedded
in MgO,
J. Xu, J. Moxom, B. Somieski, C. W. White, A. P. Mills, Jr., R. Suzuki
and S. Ishibashi, Physical Review B 64, 113404 (2001)
Vacancy Clusters at Nanoparticle Surfaces,
J. Xu, J. Moxom, B. Somieski, C.W. White, A. P. Mills, R. Suzuki, S. Ishibashi,
A. Ueda, D. O. Henderson, Materials Science Forum 363-365, 637 (2001)
Degradation of polymer coating systems studied by positron annihilation spectroscopy. IV. Oxygen effect of UV irradiation,
R. Zhang, H. Chen, H. Cao, C-M. Huang, P. E. Mallon, Y. Li, Y. He, T. C. Sandreczki, Y. C. Jean, R. Suzuki and T. Ohdaira, Journal of Polymer Science 39,
2035 (2001)
Polymeric coating degradation in accelerated weathering investigated by
using positron annihilation spectroscopy,
R. Zhang, P.E. Mallon, H. Chen, C.M. Huang, Jun Jie Zhang, Ying Li, H.
Cao, Q. Peng, J.R. Richardson, Y.Y. Huang, T.C. Sandreczki, Y.C. Jean,
R. Suzuki, T. Ohdaira and B. Nielsen, Materials Science Forum 363-365, 505 (2001)
Application of slow positrons to coating degradation,
H. Cao, R. Zhang, H. M. Chen, P. Mallon, C.-M. Huang, Y. He, T. C. Sandreczki,
Y. C. Jean, B. Nielsen, T. Friessnegg, R. Suzuki and T. Ohdaira, Radiation
Physics and Chemistry 58, 645 (2000)
Characterization of porous SiC by variable-energy positron beams,
K. Hirata, T. Monguchi, R. Suzuki, T. Ohdaira, Y. Kobayashi, T. Kumagai,
T. Tsunoda, S. Hishita, T. Mikado, H. Fujioka, M. Oshima, Radiation Physics
and Chemistry 58, 621 (2000)
Positron annihilation studies of chromophore-doped polymers,
C. M. Huang, J.-P. Yuan, H. Cao, R. Zhang, Y. C. Jean, R. Suzuki, T. Ohdaira
and B. Nielsen, Radiation Physics and Chemistry 58, 571 (2000)
Solid-state amorphization in multilayer Fe/Hf studied by slow positrons,
T. Nagata, A. Ozaki, Y. Terashima, I. Kanazawa, R. Suzuki, T. Ohdaira, F. Komori and Y. Ito, Nuclear Instruments and Methods in Physics Research B 171, 240 (2000)
A positron lifetime spectroscopy apparatus for surface and near-surface positronium experiments,
R. Suzuki, T. Ohdaira and T. Mikado, Radiation Physics and Chemistry 58, 603 (2000)
Electrical and structural properties of Al and B implanted 4H-SiC,
Y. Tanaka, N. Kobayashi, H. Okumura, R. Suzuki, T. Ohdaira, M. Hasegawa,
M. Ogura, S. Yoshida and H. Tanoue, Materials Science Forum 338-342, 909 (2000)
Stable quasicrystals studied by means of the slow positron beam,
H. Uchiyama, Y. Takahashi, K. Sato, I. Kanazawa, K. Kimura, F. Komori,
R. Suzuki, T. Ohdaira, R. Tamura and S. Takeuchi, Nuclear Instruments and
Methods in Physics Research B 171, 245 (2000)
Crystallization of an amorphous layer in P+-implanted 6H-SiC studied by
monoenergetic positron beams,
A. Uedono, S. Tanigawa, T. Ohshima, H. Itoh, M. Yoshikawa, I. Nashiyama, T. Frank, G. Pensl, R. Suzuki, T. Ohdaira and T. Mikado, Journal of Applied Physics 87, 4119 (2000)
Annealing properties of defects during Si-on-insulator fabrication by low-dose
oxygen implantation studied by monoenergetic positron beams,
A. Uedono, S. Tanigawa, A. Ogura, H. Ono, R. Suzuki, T. Ohdaira, T. Mikado,
Journal of Applied Physics 87, 1659 (2000)
Open spaces and relaxation processes in the subsurface region of polypropylene probed by monoenergetic positron beams,
A. Uedono, R. Suzuki, T. Ohdaira, T. Mikado, S. Tanigawa, M. Ban, M. Kyoto,
T. Uozumi, Journal of Polymer Science 38, 101 (2000)
Oxygen-related defects introduced by As+-implantation through cap layers
in Si probed by monoenergetic positron beams,
A. Uedono, M. Muramatsu, T. Ubukata, H. Tanino, S. Tanigawa, A. Nakano, H. Yamamoto, R. Suzuki, T. Ohdaira and T. Mikado, Japanese Journal of Applied Physics 39, 6126 (2000)
Variable-Energy Positron Lifetime Study of Silicon-Oxide Films Plasma Deposited
from Hexamethyldisiloxane and Oxygen Mixtures,
C. L. Wang, Y. Kobayashi, H. Togashi, K. Hirata, R. Suzuki, T. Ohdaira,
T. Mikado and S. Hishita, Journal of Applied Polymer Science 79, 974 (2000)
Development of positron annihilation spectroscopy to test accelerated weathering of protective polymer coatings,
R. Zhang, H. Cao, H. M. Chen, P. Mallon, T. C. Sandreczki, J. R. Richardson,
Y. C. Jean, B. Nielsen, R. Suzuki and T. Ohdaira, Radiation Physics and
Chemistry 58, 639 (2000)
Free volumes and holes
near the polymer surface studied by positron annihilation,
H. Cao, J-P. Yuan, R. Zhang, C. S. Sundar, Y. C. Jean, R. Suzuki, T. Ohdaira
and B. Nielsen, Applied Surface Science 149, 116 (1999)
Degradation of Polymer Coating Systems Studied by Positron Annihilation
Spectroscopy. 3. Wavelength Dependence of UV Irradiation Effect,
H. Cao, J.-P. Yuan, R. Zhang, C.-M. Huang, Y. He, T. C. Sandreczki, Y.
C. Jean, B. Nielsen, R. Suzuki and T. Ohdaira, Macromolecules 32, 5925 (1999)
Characterization of H-related defects in H-implanted Si with slow positrons,
M. Fujinami, R. Suzuki, T. Ohdaira and T. Mikado, Applied Surface Science
149, 188 (1999)
Control of intrinsic defects in molecular beam epitaxy grown CuInSe2,
S. Niki, P. J. Fons, Y. Lacroix, K. Iwata, A. Yamada, H. Oyanagi, M. Uchino, Y. Suzuki, R. Suzuki, S. Ishibashi, T. Ohdaira, N. Sakai and H. Yokokawa,
Journal of Crystal Growth 201-202, 1061 (1999)
Time-of-flight positron-annihilation induced Auger electron spectroscopy studies of adsorption of oxygen on Si(100),
T. Ohdaira, R. Suzuki and T. Mikado, Applied Surface Science 149, 260 (1999)
Surface top-layer analysis by positron annihilation induced Auger electron spectroscopy,
T. Ohdaira, R. Suzuki and T. Mikado, Surface Science 433-435, 239 (1999)
Positron-annihilation studies of stable Al-based icosahedral quasicrystals,
K. Sato, Y. Takahashi, H. Uchiyama, I. Kanazawa, R. Tamura, K. Kimura,
F. Komori, R. Suzuki, T. Ohdaira and S. Takeuchi, Physical Review B 59, 6712 (1999)
Microstructure of thermally grown and deposited alumina films probed with
positrons,
B. Somieski, L. D. Hulett, J. Xu, B. A. Pint, P. F. Tortorelli, B. Nielsen,
P. Asoka-Kumar, R. Suzuki, T. Ohdaira, Physical Review B 59, 6675 (1999)
Positron re-emission from tungsten surfaces,
R. Suzuki, G. Amarendra, T. Ohdaira and T. Mikado, Applied Surface Science
149, 66 (1999)
Defects in p+-gate metal-oxide-semiconductor structures probed by monoenergetic
positron beams,
A. Uedono, M. Hiketa, S. Tanigawa, T. Kitano, T. Kubota, M. Makabe, R.
Suzuki, T. Ohdaira and T. Mikado, Journal of Applied Physics 86, 5385 (1999)
Open Spaces and Relaxation Processes in the Subsurface Region of Polypropylene Probed by Monoenergetic Positron Beams,
A. Uedono, R. Suzuki, T. Ohdaira, T. Mikado, S. Tanigawa, M. Ban, M. Kyoto and T. Uozumi, Journal of Polymer Science B 38, 101 (1999)
Plasma-Polymerized Hexamethyldisiloxane Films Characterized by Variable-Energy
Positron Lifetime Spectroscopy,
C. L. Wang, Y. Kobayashi, H. Togashi, K. Kato, T. Hirotsu, K. Hirata, R.
Suzuki, T. Ohdaira and T. Mikado, Journal of Applied Polymer Science 74, 2522 (1999)
Impurity–vacancy defects in implanted float-zone and Czochralski-Si,
J. Xu, A.P. Mills Jr., R. Suzuki, E.G. Roth and O.W. Holland, Applied Surface
Science 149, 193 (1999)
Vacancy defects in solid-phase epitaxial grown layers of self-implanted Si,
J. Xu, E. G. Roth, O. W. Holland, A. P. Mills, Jr., R. Suzuki, Applied Physics Letters 74, 997 (1999)
Vacancy Clusters on Surfaces of Au Nanoparticles Embedded in MgO,
J. Xu, A. P. Mills, Jr., A. Ueda, D. O. Henderson, R. Suzuki and S. Ishibashi,
Physical Review Letters 83, 4586 (1999)
Free-volume hole model for positronium formation in polymers: surface studies,
H. Cao, R. Zhang, J.-P. Yuan, C.-M. Huang, Y. C. Jean, R. Suzuki, T. Ohdaira and B. Nielsen, Journal of Physics: Condensed Matter 10, 10429 (1998)
Thermal evolution of defects in H-implanted Si studied by monoenergetic positrons,
M. Fujinami, R. Suzuki, T. Ohdaira and T. Mikado, Physical Review B 58, 12559 (1998)
Neutralization of intermediate-velocity Li emerging from Cs- and oxygen-covered
Si(100) and GaAs(110) surfaces,
N. Imanishi, T. Ohdaira, K. Hadano, A. Aratake, M. Imai M and A. Itoh A,
Nuclear Instruments and Methods in Physics Research B 135, 413 (1998)
High-quality CuInSe2 epitaxial films-molecular beam epitaxial growth and
intrinsic properties,
S. Niki, P.J. Fons, A. Yamada, R. Suzuki, T. Ohdaira, S. Ishibashi and H. Oyanagi, Proceedings of the 11th International Conference on Ternary and Multinary Compounds. ICTMC-11, pp. 221-7 (1998)
Positron annihilation induced Auger electron spectroscopy with an intense slow-positron beam,
T. Ohdaira, R. Suzuki, T. Mikado and T. Yamazaki, Journal of Electron Spectroscopy and Related Phenomena 88-91, 677 (1998)
Study of thermal annealing of vacancies in ion implanted 3C-SiC by positron
annihilation,
T. Ohshima, A. Uedono, H. Itoh, L. Bouwhuis, R. Suzuki, T. Ohdaira, Y.
Aoki, M. Yoshikawa, T. Mikado, H. Okumura, S. Yoshida, S. Tanigawa and
I. Nashiyama, Materials Science Forum 264-268, 745 (1998)
Study of residual defects in ion-implanted and subsequently annealed 3C-SiC
(in Japanese),
T. Ohshima, H. Itoh, A. Uedono, R. Suzuki, Y. Ishida, T. Takahashi, M. Yoshikawa, K. Kozima, T. Ohdaira, I. Nashiyama, S. Tanigawa, H. Okumura, S. Yoshida, T. Mikado and S. Okada, Bulletin of the Electrotechnical Laboratory 62
(11), 31 (1998)
Characterization of intrinsic defects in CuInSe2 films by monoenergetic positron beams,
R. Suzuki, T. Ohdaira, S. Ishibashi, A. Uedono, S. Niki, P. J. Fons, A.
Yamada, T. Mikado, T. Yamazaki and S. Tanigawa, Proceedings of the 11th
International Conference on Ternary and Multinary Compounds, ICTMC-11,
pp. 757-60 (1998)
Investigation of positron moderator materials for electron-linac-based
slow positron beamlines,
R. Suzuki, T. Ohdaira, A. Uedono, Y. K. Cho, S. Yoshida, Y. Ishida, T.
Ohshima, H. Itoh, M. Chiwaki, T. Mikado, T. Yamazaki and S. Tanigawa, Japanese
Journal of Applied Physics 37, 636 (1998)
Investigation of vacancy-type defects in P+-implanted 6H-SiC using monoenergetic
positron beams,
A. Uedono, T. Ohshima, H. Itoh, R. Suzuki, T. Ohdaira, S. Tanigawa, Y. Aoki, M. Yoshikawa and T. Mikado, Japanese Journal of Applied Physics 37, 2422 (1998)
Defects in Ion Implanted Hg0.78Cd0.22Te Probed by Monoenergetic Positron Beams,
A. Uedono, H. Ebe, M. Tanaka, R. Suzuki, T. Ohdaira, S. Tanigawa, T. Mikado,
K. Yamamoto and Y. Miyamoto, Japanese Journal of Applied Physics 37, 3910 (1998)
Open spaces in the subsurface region of polyethylene probed by monoenergetic
positron beams,
A. Uedono, R. Suzuki, T. Ohdaira, T. Uozumi, M. Ban, M. Kyoto, S. Tanigawa
and T. Mikado, Journal of Polymer Science 36, 2597 (1998)
Defect Study
of Heavily n-Type Doped III-V Compound Semiconductors by Means of Pulsed
Positron Beam Measurement,
Y. K. Cho, J. Y. Leem, C. Lee, S. K. Noh, R. Suzuki, T. Odaira and T. Mikado, Materials Science Forum 255-257, 701 (1997)
Variable-energy positron beam system and its application to depth-selective defect analysis,
K. Hirata, Y. Kobayashi, S. Hishita, X. Zhao, Y. Itoh, T. Ohdaira, R. Suzuki
and Y. Ujihira, Nuclear Instruments and Methods in Physics Research B 121, 267 (1997)
Hydrogenation of amorphous silicon prepared by ion implantation,
Y. Hiroyama, T. Motooka, R. Suzuki, Y. Hirano and F. Sato, Nuclear Instruments
and Methods in Physics Research B 127-128, 63 (1997)
Positron lifetimes in TTF-TCNQ and κ-(BEDT-TTF)2Cu(NCS)2 single
crystals,
S. Ishibashi, M Tokumoto, N. Kinoshita, N. Terada, H. Ihara, R. Suzuki, T. Ohdaira, T. Mikado and H Anzai, Applied Surface Science 116, 300 (1997)
Free-volume hole properties near the surface of polymers obtained from slow positron annihilation spectroscopy,
Y. C. Jean, H. Cao, G. H. Dai, R. Suzuki, T. Ohdaira, Y. Kobayashi and
K. Hirata, Applied Surface Science 116, 251 (1997)
Annealing properties of defects in BF2+ implanted silicon,
T. Kitano, M. Watanabe, A. Yaoita, S. Oguro, A. Uedono, T. Moriya, S. Tanigawa,
T. Kawano, R. Suzuki, T. Ohdaira and T. Mikado, Microstructure Evolution
During Irradiation, Materials Research Society Proceedings 439, 143 (1997)
Annealing properties of defects in BF2+ implanted silicon,
T. Kitano, M. Watanabe, A. Yaoita, S. Oguro, A. Uedono, T. Moriya, S. Tanigawa, T. Kawano, R. Suzuki, T. Ohdaira and T. Mikado, Materials Modification and Synthesis by Ion Beam Processing, Materials Research Society Proceedings 438, 137 (1997)
An apparatus for high-resolution positron-annihilation induced Auger-electron spectroscopy using a time-of-flight technique,
T. Ohdaira, R. Suzuki, T. Mikado, H. Ohgaki, M. Chiwaki and T. Yamazaki,
Applied Surface Science 116, 177 (1997)
Auger line shape analysis by time-of-flight positron-annihilation induced
Auger-electron spectroscopy,
T. Ohdaira, R. Suzuki, T. Mikado and T. Yamazaki, Materials Science Forum
255-257, 769 (1997)
Positron lifetime study on semiconductor thin films,
R. Suzuki, T. Ohdaira, A. Uedono, S. Ishibashi, A. Matsuda, S. Yoshida, Y. Ishida, S. Niki, P.J. Fons, T. Mikado, T. Yamazaki, S. Tanigawa and Y. K. Cho,
Materials Science Forum 255-257, 714 (1997)
Control and measurement system for positron experiments at the ETL linac facility,
R. Suzuki, T. Ohdaira, T. Mikado, H. Ohgaki, M. Chiwaki and T. Yamazaki,
Applied Surface Science 116, 187 (1997)
Moderation of positrons generated by an electron linac,
R. Suzuki, T. Ohdaira, T. Mikado, A. Uedono, H. Ohgaki, T. Yamazaki and
S. Tanigawa, Materials Science Forum 255-257, 114 (1997)
Fluorine-related defects in BF2+-implanted Si probed by monoenergetic positron
beams,
A. Uedono, T. Kitano, W. Watanabe, T. Moriya, N. Komuro, T. Kawano, S. Tanigawa, R. Suzuki, T. Ohdaira and T. Mikado, Japanese Journal of Applied Physics 36, 969 (1997)
Annealing properties of defects in B+- and F+-implanted Si studied using monoenergetic positron beams,
A. Uedono, T. Kitano, K. Hamada, T. Moriya, T. Kawano, S. Tanigawa, R.
Suzuki, T. Ohdaira and T. Mikado, Japanese Journal of Applied Physics 36, 2571 (1997)
Annealing properties of defects in ion-implanted 3C-SiC studied using monoenergetic
positron beams,
A. Uedono, H. Itoh, T. Ohshima, R. Suzuki, T. Ohdaira, S. Tanigawa, Y.
Aoki, M. Yoshikawa, I. Nashiyama, T. Mikado, H. Okumura and S. Yoshida,
Japanese Journal of Applied Physics 36, 6650 (1997)
Defects in the Ti/GaAs system probed by monoenergetic positron beams,
A. Uedono, S. Fujii, T. Moriya, T. Kawano, S. Tanigawa, R. Suzuki, T. Ohdaira and T. Mikado, Journal of Physics: Condensed Matter 9, 6827 (1997)
Effects of vacancy-type defects on electrical-activation of P+ implanted into silicon,
M. Watanabe, T. Kitano, S. Asada, A. Uedono, T. Moriya, T. Kawano, S. Tanigawa,
R. Suzuki, T. Ohdaira and T. Mikado, Microstructure Evolution During Irradiation,
Materials Research Society Proceedings 439, 95 (1997)
Effects of vacancy-type defects on electrical-activation of P+ implanted
into silicon,
M. Watanabe, T. Kitano, S. Asada, A. Uedono, T. Moriya, T. Kawano, S. Tanigawa,
S. Suzuki, T. Ohdaira and T. Mikado, Materials Modification and Synthesis
by Ion Beam Processing, Materials Research Society Proceedings 438, 131 (1997)
Microdefects in Al2O3 films and interfaces revealed by positron lifetime
spectroscopy,
J. Xu, B. Somieski, L. D. Hulett, B. A. Pint, P. F. Tortorelli, R. Suzuki and T. Ohdaira, Applied Physics Letters 71, 3165 (1997)
Variable-energy positron lifetime studies of Al2O3 films on aluminide metals,
J. Xu, L. D. Hulett, B. Somieski, R. Suzuki and T. Ohdaira, Materials Science
Forum 255-257, 214 (1997)
Challenge to deep UV and VUV FEL in a small-scale storage ring,
K. Yamada, T. Yamazaki, N. Sei, H. Ohgaki, T. Mikado, T. Noguchi, S. Sugiyama,
R. Suzuki, T. Ohdaira, M. Kawai and M. Yokoyama, Free Electron Laser Challenges,
SPIE Proceedings 2988, 134 (1997)
Production and application of pulsed slow-positron beam using an electron
linac,
T. Yamazaki, R. Suzuki, T. Ohdaira, T. Mikado and Y. Kobayashi, Recent Progress in Accelerator Beam Application,
Proceedings of the 7th International Symposium on Advanced Nuclear Energy Research (JAERI-Conf 97-003), pp. 143 (1997)
Production and application of pulsed slow-positron beam using an electron linac,
T. Yamazaki, R. Suzuki, T. Ohdaira, T. Mikado and Y. Kobayashi, Radiation
Physics and Chemistry 49, 651 (1997)
Saturation of cavity-mirror degradation in the UV FEL,
K. Yamada, T. Yamazaki, N. Sei, R. Suzuki, T. Ohdaira, T. Shimizu, M. Kawai,
M. Yokoyama, T. Mikado, T. Noguchi, S. Sugiyama and H. Ohgaki, Nuclear
Instruments and Methods in Physics Research A 393, 44 (1997)
Surface properties of polymers studied by slow positron annihilation spectroscopy,
R. Zhang, H. Cao, J.P. Yuan, C.M. Huang, Q. Y. Zhang, T.C. Sandreczki, B. Nielsen, P. Asoka-Kumar, R. Suzuki, T. Ohdaira and Y.C. Jean, Materials Science Forum 255-257, 704 (1997)
Effects of hydrogen on structural relaxation
and defect evolution in amorphous silicon,
Y. Hiroyama, T. Motooka, R. Suzuki, Y. Hirano and F. Sato, Applied Physics
Letters 68, 3126 (1996)
Positron lifetimes in molecular crystals,
S. Ishibashi, M. Tokumoto, N. Kinoshita, N. Terada, H. Ihara, R. Suzuki, T. Ohdaira, T. Mikado and H. Anzai, Canadian Journal of Physics 74, 534 (1996)
High sensitivity of positron-annihilation induced Auger-electron spectroscopy to surface impurities,
T. Ohdaira, R. Suzuki, T. Mikado, H. Ohgaki, M. Chiwaki, T. Yamazaki and
M Hasegawa, Applied Surface Science 100-101, 73 (1996)
Apparatus for positron-annihilation-induced Auger electron spectroscopy
with a pulsed positron beam,
R. Suzuki, T. Ohdaira, T. Mikado, H. Ohgaki, M. Chiwaki and T. Yamazaki,
Applied Surface Science 100-101, 297 (1996)
Effects of recoil-implanted oxygen on depth profiles of defects and annealing
processes in P+-implanted Si studied using monoenergetic positron beams,
A. Uedono, T. Kitano, N. Watanabe, T. Moriya, T. Kawano, S. Tanigawa, R. Suzuki, T. Ohdaira and T. Mikado, Japanese Journal of Applied Physics 35, 2000 (1996)
Ramen Spectroscopy and Positron
Lifetime Studies of Structural Relaxation and Defect Evolution in Amorphous
Silicon ,
Y. Hiroyama, R. Suzuki, Y. Hirano, F. Sato and T. Motooka, Japanese Journal
of Applied Physics 34, 5515 (1995)
Role of defects during amorphization and relaxation processes in Si,
T. Motooka, Y. Hiroyama, R. Suzuki, T. Ohdaira, Y. Hirano and F. Sato, Nuclear Instruments and Methods in Physics Research B 106, 198 (1995)
Role of Vacancy Defects during Structural Relaxation of Amorphous Silicon,
T. Motooka, Y. Hiroyama, R. Suzuki, T. Ohdaira, Y. Hirano and F. Sato,
Japanese Journal of Applied Physics 34, L149 (1995)
Time-of-flight measurements of positron-annihilation induced Auger electrons,
T. Ohdaira, R. Suzuki, T. Mikado, H. Ohgaki, M. Chiwaki and T. Yamazaki,
Proceedings of the 10th Symposium on Accelerator Science and Technology,
JAERI-Conf 95-021, pp395-7 (1995)
Generation of an intense pulsed positron beam for positron lifetime and TOF experiments,
R. Suzuki, T. Mikado, M. Chiwaki and H. Ohgaki, Applied Surface Science 85, 87 (1995)
Three Dimensional Scanning Positron Lifetime Spectroscopy,
R. Suzuki, T. Mikado, H. Ohgaki, M. Chiwaki and T. Yamazaki, Materials
Science Forum 175-178, 217 (1995)
Pulsing of an intense slow positron-beam and its applications,
R. Suzuki, T. Ohdaira, T. Mikado, H. Ohgaki, M. Chiwaki, T. Yamazaki and
Y. Kobayashi, Bulletin of the Electrotechnical Laboratory 59, 1 (1995)
Vacancy-type defects in ion-implanted diamonds probed by monoenergetic positron beams,
A. Uedono, T. Kawano, S. Tanigawa, R. Suzuki, T. Ohdaira, T. Mikado, S. Fujii and S. Shikata, Japanese Journal of Applied Physics 34, 1772 (1995)
Defects in TiN films probed by monoenergetic positron beams,
A. Uedono, S. Nanao, S. Tanigawa, R. Suzuki, T. Ohdaira, T. Mikado and
S. Ishibashi, Japanese Journal of Applied Physics 34, 5711 (1995)
Positron lifetime study
on ion-implanted amorphous SiO, with a variable-energy pulsed positron
beam,
R. Suzuki, Y. Kobayashi, K. Awazu, T. Mikado, M. Chiwaki, H. Ohgaki and
T. Yamazaki, Nuclear Instruments and Methods in Physics Research B 91, 410 (1994)
Slow-positron facility at the ETL-improvement of the transport system and
research programs,
R. Suzuki, T. Ohdaira, T. Yamazaki, T. Mikado, H. Ohgaki, Y. Kobayashi, K. Yamada and M. Chiwaki, Proceedings of the 19th Linear Accelerator Meeting in Japan, JAERI 94-003, pp34 (1994)
Si02 films deposited on Si substrates studied by monoenergetic positron beams,
A. Uedono, L. Wei, S. Tanigawa, R. Suzuki, H. Ohgaki, T. Mikado and K.
Fujino, Journal of Applied Physics 75, 216 (1994)
Positronium formation in Si02 films grown on Si substrates studied by monoenergetic
positron beams,
A. Uedono, L. Wei, S. Tanigawa, R. Suzuki, H. Ohgaki, T. Mikado, T. Kawano
and Y. Ohji, Journal of Applied Physics 75, 3822 (1994)
Defects in Heavily Phosphorus-Doped Si Epitaxial Films Probed by Monoenergetic
Positron Beams,
A. Uedono, S. Tanigawa, R. Suzuki, H. Ohgaki, T. Mikado, Japanese Journal of Applied Physics 33, 6286 (1994)
Lasing at 352-nm of the NIJI-IV Storage-Ring Free-Electron Laser,
T. Yamazaki, K. Yamada, N. Sei, H. Ohgaki, M. Kawai, M. Yokoyama, S. Hamada,
S. Sugiyama, T. Mikado, R. Suzuki, T. Noguchi, M. Chiwachi and A. Iwata,
Japanese Journal of Applied Physics 33, L1224 (1994)
Ion-Beam-Induced Recrystallization in Si(100) Studied with Slow Positron Annihilation
and Rutherford Backscattering and Channeling,
N. Hayashi, R. Suzuki, M. Hasegawa, N. Kobayashi, S. Tanigawa and T. Mikado,
Physical Review Letters 70, 45 (1993)
Study of ion-beam-induced epitaxy in Si by slow positron annihilation and RBS channeling,
N. Hayashi, R. Suzuki, H. Watanabe, I. Sakamoto, N. Kobayashi, T. Mikado, T. Yamazaki and K. Kuriyama, Nuclear Instruments and Methods in Physics Research B 180-181, 1006 (1993)
Positron annihilation in a metal-oxide semiconductor studied by using a
pulsed monoenergetic positron beam,
A. Uedono, L. Wei, S. Tanigawa, R. Suzuki, H. Ohgaki, T. Mikado and Y.
Ohji, Journal of Applied Physics 74, 7251 (1993)
Characterization of Separation-by-Implanted-Oxygen Wafers with Monoenergetic
Positron Beams,
A. Uedono, L. Wei, S. Tanigawa, R. Suzuki, H. Ohgaki, T. Mikado, H. Kametani,
H. Akiyama, Y. Yamaguchi and M. Koumaru, Japanese Journal of Applied Physics 32, 3682 (1993)
Investigation
of Near Surface Defects by Variable-Energy Positron Lifetime Spectroscopy,
R. Suzuki, Y. Kobayashi, T. Mikado, H. Ohgaki, M. Chiwaki, T. Yamazaki and T. Tomimasu, Material Science Forum 105-110, 1459 (1992)
Positron Pulsing System for Variable Energy Positron Lifetime Spectroscopy,
R. Suzuki, Y. Kobayashi, T. Mikado, H. Ohgaki, M. Chiwaki, T. Yamazaki
and T. Tomimasu, Materials Science Forum 105-110, 1993 (1992)
Test of 3D Momentum Density and Fermi Surface Reconstruction,
R. Suzuki and S. Tanigawa, Materials Science Forum 105-110, 1997 (1992)
Pulsing of Slow Positrons for Variable-Energy Positron Lifetime Spectroscopy,
R. Suzuki, Y. Kobayashi, T. Mikado, H. Ohgaki, M. Chiwaki, T. Yamazaki and T. Tomimasu, Solid State Phenomena 28-29, 365 (1992)
Characterization of Diamond Films by Means of a Pulsed Positron Beam,
R. Suzuki, Y. Kobayashi, T. Mikado, H. Ohgaki, M. Chiwaki, T. Yamazaki,
A. Uedono, S. Tanigawa and H. Funamoto, Japanese Journal of Applied Physics
31, 2237 (1992)
Slow Positron Pulsing System for
Variable Energy Lifetime Spectroscopy,
R. Suzuki, Y. Kobayashi, T. Mikado, H. Ohgaki, M. Chiwaki, T. Yamazaki
and T. Tomimasu, Japanese Journal of Applied Physics 30, L532 (1991)
Characterization of Amorphous Silicon Films by a Pulsed Positron Beam,
R. Suzuki, Y. Kobayashi, T. Mikado, A. Matsuda, P. J. McElheny, S. Mashima, H. Ohgaki, M. Chiwaki, T. Yamazaki and T. Tomimasu, Japanese Journal of Applied Physics 30, 2438
(1991)
Stretching of Slow Positron Pulses
Generated with an Electron Linac,
T. Akahane, T. Chiba, N. Shiotani, S. Tanigawa, T. Mikado, R. Suzuki, M.
Chiwaki, T. Yamazaki and T. Tomimasu, Applied Physics A 51, 146 (1990)