Calibration Service

The following calibration services are provided.
CMC lists are appeared in the BIPM web site.

  • γ-ray air kerma(Co-60, Cs-137)
    Co-60: 3.5×10-6 Gy・h-1~5.4×102 Gy・h-1(air kerma rate)
    Cs-137: 1.0×10-6 Gy・h-1~2.4 Gy・h-1(air kerma rate)
  • low-level air kerma rate(Cs-137)
    0.065 mGy・h-1~2.0 mGy・h-1
  • Absorbed dose (rate) to water in Co-60 γ-rays
    1.2×10-2 Gy・s-1 (at 1st May, 2009)、0.1 Gy ~ 220 Gy
  • Absorbed dose to water in high energy photon beams from a clinical linac(6 MV, 10MV, 15 MV)
  • X-ray air kerma (rate)
    X-ray tube voltage:low energy X-rays  10 kV~50 kV
              medium energy X-rays 30 kV~300 kV
    X-ray qualities  :QI = 0.4 ~ 0.9, ISO4037, BIPM
  • Mammography X-ray air kerma (rate)
    X-ray tube voltage  :20 kV ~ 35 kV
    Anode/filter material:Mo/Mo, Mo/Rh, Rh/Rh, W/Rh, W/Ag, W/Al
    Compression paddle:with or without
  • Absorbed dose to tissue for β-rays:Sr-90/Y-90, Kr-85, Pm-147
  • Absorbed dose to water for β-ray therapy source: Ru-106
  • Intensity of monochromatized soft X-rays (Photon energy: 100 ~ 3900 eV, on-site calibration only