京都大学放射線生物研究センター

共同利用研究の主な設備

主な共同利用機器とその特性

Low Dose and Low Dose-rate Irradiation System

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  • Cs-137 Gamma-ray source and estimated dose rate
Source Dose rate
(a*X-n microGy/min at X m, 1.3 ≤ X ≤ 12)
37 GBq a=41.8094,n=1.9853
370 GBq a=355.2841,n=2.0473
1850 GBq a=2321.5608,n=2.0609
  • Dose rate at site is also determined by glass dosimeter.
  • Programmable variable dose rate during exposure (maximum stroke is 12 m).
  • Irradiation room is controlled for temperature and clean air-flow, and available for long-term irradiation of cultured cells and small animals.
  • For energy distribution of gamma-rays in the field, see SPECTRUM.
  • Reference: RBC Newsletter No. 75 (1996) and No. 101 (2002).

Cs-137 Gammacell 40 Exactor

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High dose-rate gamma-ray irradiator equipped with Cs-137 gamma-source

  • Cs-137 133.2 TBq
  • Four different dose-rates are available by aplying attenuators.
Attenuator Dose rate (updated 2001.05.01)
Void 1.245 Gy/min
No.1 0.815 Gy/min
No.2 0.463 Gy/min
No.3 0.210 Gy/min

High Dose-rate Orthovoltage X-ray Irradiator

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Radioflex 350 (Rigaku)

  • X-ray tube:
    metalceramic with Be window.
  • Tube voltage:
    50-350 kV (variable).
  • Tube current:
    6-20 mA (variable).
  • Maximum output:
    4.2 kVA.
  • For dose rate, see DOSERATE.
  • Reference:
    Rad. Biol. Res. Comm., 22:29-35, 1987.

50 kV orthovoltage soft-X irradiator, SOFTEX CMBW-2, is also available.

  • Nominal output:
    60 kV, 30 mA.

Alpha-particle Irradiator (MSC-AM-1)

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Am-241 alpha-particle generating system.

  • Source:
    Am-241 (37 MBq) matrix (35mm diameter, 1um thick) backed with plastic plate (2mm thick)
  • Flight tube:
    Filled with He gas (flow rate: 2 litter/min).
  • Culture dish:
    Stailess steel (35mm diameter) with bottom of Myler film (1.5 um thick).
  • Dose rate:

    Variable with the FSD (20mm – 90 mm). PC program is available for fluence rate, LET distribution and dose rate at the entrance and exit of the cells (the thickness of the cells is needed for calculation).

  • For energy, LET and dose rate, see ENERGY or LET or DOSE.
  • Reference:

    RBC Newsletter No. 73, 1995.

DNA sequencers

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Following sequencers are available.

  • ABI PRISM® 3100-Avant Genetic Analyzer