Installation Study of Gamma-ray Irradiation Systems Using Cs-137 and Co-60 Sources

Cs-137 및 Co-60감마선 조사장치 설치 연구

  • Kim, Wuon-Shik (Radiation Laboratory, Korea Standards Research Institute) ;
  • Hah, Suck-Ho (Radiation Laboratory, Korea Standards Research Institute) ;
  • Hwang, Sun-Tae (Radiation Laboratory, Korea Standards Research Institute)
  • 김원식 (한국표준연구소.방사선연구실) ;
  • 하석호 (한국표준연구소.방사선연구실) ;
  • 황선태 (한국표준연구소.방사선연구실)
  • Published : 1986.12.15

Abstract

Using Cs-137 and Co-60 gamma-ray irradiation systems, the buildup factors for 2.9 cm thick lead absorber and the air scattering factors are determined for different beam solid angles from$2.4{\pi}{\times}10^{-3}sr\;to\;17.3{\pi}{\times}10^{-3}sr$. The corresponding buildup factors are turned out to be the values from 1.054 to 1.194 and the scattering factors to be the values from 1 to 1.064, respectively. To verify our results, calculated values using these factors and experimental values are compared. The differences between them are not more than 3. 3%.

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