GEANT4를 이용한 Co-60 방사선 치료기의 전산 시늉 = Monte Carlo Simulation of Co-60 an External Therapy Unit by Using GEANT4

다국어 초록 (Multilingual Abstract)

In this study, GEANT4 simulations were carried out to calculate the energy spectrum in air and the percentage dose distribution in water for the gamma rays from the cobalt-60 irradiation unit. To examine the validity of this study, we compared these results with other theoretical or experimental results reported previously. As for the calculation of the percentage dose distribution, the DOSXYZnrc code,as well as GEANT4, was employed. The results obtained with GEANT4were found to be very much similar to the ones obtained with EGS4previously. As for the percentage dose distribution, the results also turned out to be in good agreement with the theoretical or measured results published elsewhere.

국문 초록 (Abstract)

본 연구에서는 동남권원자력의학원에서 도입 예정인 코발트 조사기에대한 선행연구로서, 코발트에서 방출되는 감마선의 에너지 스펙트럼과물속 깊이 선량률을 GEANT4를 이용하여 계산하고, 그 결과를 이미 보고된이론적 또는 실험적 결과와 비교하였다. 깊이 선량률 계산에서는 GEANT4이외에 DOSXYZnrc 코드도 함께 사용하였다. 먼저 GEANT4로 얻은 감마선에너지 스펙트럼이 EGS를 이용하여 발표된 기존 연구 결과와 매우유사함을 확인하였다. 깊이 선량률 계산에 있어서도 GEANT4와DOSXYZnrc를 이용하여 계산된 결과들이 기존에 이론적 또는 실험적으로보고된 결과들과 거의 차이를 보이지 않음을 확인하였다.

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