Low Dose and Low Dose-rate Irradiation System

• Cs-137 Gamma-ray source and estimated dose rate

• 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

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.

• For details, see DOSERATE.

High Dose-rate Orthovoltage X-ray Irradiator

（このX線照射装置は登録を廃止いたしましたので、今後はご利用いただけません。　2020年4月1日～）

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)

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

Following sequencers are available.

• ABI PRISM^® 3100-Avant Genetic Analyzer