1. Positron probe microanalyzer
By using a high-intensity pulsed positron beam with variable incident energy we have developed a technique to measure spatial distribution of defects and vacancies of atomic to nanometer sizes.

2. Standard for the absorbed dose in water for high energy photons from a clinical linac
We have developed a graphite calorimeter and established a standard for the absorbed dose in water for medical use with an uncertainty of 0.8%.

3. Non-destructive and non-contact infrastructure diagnosis
By means of the sampling Moire method we have developed a measurement technique of the deformation distribution of structural objects and applied the technique to the measurement of bridges.

4. Visible and near infrared laser transient absorption spectroscopy
We evaluate the performance of solar cells and organic electronic devices by measuring ultrafast behavior of charged carriers.