npsm 새물리 New Physics : Sae Mulli

pISSN 0374-4914 eISSN 2289-0041


Research Paper

New Phys.: Sae Mulli 2019; 69: 1027-1032

Published online October 31, 2019

Copyright © New Physics: Sae Mulli.

Comparative Study of Monte Carlo Simulation Codes for Performance Evaluation of Radiation Shielding Devices

방사선방어용기구 성능 평가를 위한 몬테카를로 시뮬레이션 비교 연구

Dong-Hee HAN1, Jong-Hun WON1, Man-Seok HAN2, Cheol-Ha BAEK*2, Yoon-Ho KIM3

1Department of Health Medical Science, Graduate School, Kangwon National University, Samcheok 25949, Korea

2Department of Radiological Science, Kangwon National University, Samcheok 25949, Korea
3Division of Chemical and Medical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Korea


Received: August 3, 2019; Revised: August 29, 2019; Accepted: August 29, 2019

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


The purpose of this study is to evaluate the reliability of the Monte Carlo simulation programs GATE and MCNP6 for simulating the performance of radiation shielding devices. Medical diagnostic tube voltages of 70, 90, 110, and 130 kVp were used for a comparative analysis of the shielding rates for the devices on the market. As a result of the simulations, we obtained a maximum error of 2.81% for a tube voltage of 70 kVp and and a lead(Pb) the closes of 0.25 mm, Pb, and a minimum error of 0.04% for a those voltage of 110 kVp and 0.35 mm. The average error was 1.05%, which is small enough to confirm that the graphs from the two programs were quite similar considering the statistical error and code differences. Hence, we conclude that the GATE and the MCNP6 programs show consistent results and can be safely employed as simulation tools for radiation shielding devices.

Keywords: Radiation shielding devices, Monte Carlo simulation, Shielding rate, Scientific verification

본 연구의 목적은 방사선방어용기구 성능 평가를 위한 과학적 검증 도구로서 몬테카를로 시뮬레이션 프로그램인 GATE와 MCNP6의 신뢰성에 대해 평가하는 것이다. GATE와 MCNP6를 이용하여 시중에 판매되고 있는 방사선방어용기구의 종류별 납 당량(Lead equivalent)에 따른 차폐율 값 비교 분석을 위해 의료 진단용 관전압 70, 90, 110, 130 kVp를 사용하였다. 시뮬레이션 결과 관전압 70 kVp, 0.25 mmPb에서 최대 오차 2.81%, 110 kVp, 0.35 mmPb에서 최소 오차 0.04% 값을 획득하였고, 평균 오차율은 1.05%로 나타났다. 평균 오차 1%대는 두 시뮬레이션의 확률적 통계변동 오차, 코드 차이 등을 고려할 때 그래프가 상당히 일치한다는 것을 확인하였고 두 몬테카를로 프로그램은 방사선방어용기구의 시뮬레이션 도구로서 유용함을 증명하였다.

Keywords: 방사선방어용기구, 몬테카를로 시뮬레이션, 차폐율, 과학적 검증

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