Exposure Measurements of Co-60 Gamma rays

Co-60 감마선의 조사선량 측정

  • 하석호 (한국표준과학연구원, 방사선연구실) ;
  • 김현문 (한국표준과학연구원, 방사선연구실)
  • Published : 1991.12.30


Measurement of Co-60 gamma rays has been made for establishment of exposure standard and analyze it's overall uncertainties. Exposure rate determined by the charge mode method using vibrating reed amplifier with cylinderical type cavity chamber. The values of a variety of physical constants and the correction factors are evaluated. The resulting exposure rate is 690.81 R/h at the distance of 1m from the source and the related uncertainties is ${\pm}0.8%$