Development of Prototype Electronic Dosimeter using the Silicon PIN Diode Detector

실리콘 PIN 다이오드 검출기를 이용한 전자선량계 개발

  • Lee, B.J. (Korea Atomic Energy Research Institute) ;
  • Kim, B.H. (Korea Atomic Energy Research Institute) ;
  • Chang, S.Y. (Korea Atomic Energy Research Institute) ;
  • Kim, J.S. (Korea Atomic Energy Research Institute)
  • Published : 2000.12.30

Abstract

A prototype electronic dosimeter(PED) adopting a silicon PIN diode detector as a radiation detector has been developed, manufactured and test-evaluated. A radiation signal processing circuit has been electronically tested and then the radiation detection characteristics of this PED has been performance-tested by using a reference photon radiation field. As a result in a electronic performance test, radiation signals from a detector were well observed in the signal processing circuit. The radiation detection sensitivity of this PED after several test-irradiations to $^{137}Cs$ gamma radiation source appeared to be 1.85 cps/$Gy{\cdot}h^{-1}$ with 19.3% of the coefficient of variation, which satisfied the performance criteria for the active personnel radiation monitor. Further improvement of the electronic circuit and operating program will enable the PED to be used in personal monitoring purpose.