The Calculation of Response Matrix of 2-Dimensional Radiation Monitoring System Using EGS4 Simulation

EGS4 simulation을 이용한 2차원 방사선준위 분포측정 시스템의 Response Matrix 계산

  • Kim, S.H. (Kyungpook National University) ;
  • Han, S.H. (Kyungpook National University) ;
  • Kang, H.D. (Kyungpook National University) ;
  • Kim, J.C. (Kyungpook National University) ;
  • Park, I.K. (Kyungpook National University) ;
  • Choi, Y.S. (Korea Atomic Energy Research Institute) ;
  • Lee, Y.B. (Korea Atomic Energy Research Institute) ;
  • Lee, J.M. (Korea Atomic Energy Research Institute)
  • Published : 1997.06.30


In this study an EGS4 simulation code was used to calculate real energy spectrum from measured ${\gamma}$-ray energy spectrum obtained using 2-dimensional radiation monitoring system. As a result, the $39{\times}39$ response matrix was calculated the energy range of 0.1 to 2 MeV which energy interval of 50 keV The real energy spectrum for Co-60 radioisotope was calculated using inverse of response matrix. It was confirmed that the calculated response matrix was useful to the analysis of the measured energy spectrum for the radiation monitoring system.