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Evaluate the Activation of Linear Accelerator Components and Shielding Wall through Simulation

모의실험을 통한 선형가속기 부품과 차폐벽의 방사화 평가

  • 이동연 (동남권원자력의학원 방사선종양학과) ;
  • 박은태 (인제대학교 부산백병원 방사선종양학과) ;
  • 김정훈 (부산가톨릭대학교 보건과학대학 방사선학과)
  • Received : 2017.06.19
  • Accepted : 2017.08.03
  • Published : 2017.09.28

Abstract

This study evaluated the activation of the shielding wall and the components around the accelerator by using the medical linear accelerator. We performed simulations for energy values of 20 MV with the operating time ranging from day 1 to 30 years, and linear accelerator head and shielding wall concrete were also evaluated. The results showed that neutrons in large quantities were analyzed using high energy around thetarget point where photons were formed. Based on the activation analysis with these results, radioactivity increased with an increase in operation time and activated nuclides usually start saturating in10 years. Furthermore, the general types of nuclides formed owingto the activation were Co-60, W-181, 185, 187, Na-24, Ca-45, Mn-54, 56, and Fe-55, 59.

Keywords

Linear Accelerator;Activation;Radioactivity;MCNPX;Simulation

Acknowledgement

Supported by : 한국연구재단

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