屏蔽结构医用直线加速器Halcyon机房的放射防护设计

RADIATION PROTECTION BULLETIN ›› 2019, Vol. 39 ›› Issue (3): 22-25.

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Radiation Protection Design of a Halcyon Self-shielding Medical Linear Accelerator Facility

Yang Jun¹, Lv Yvming², Dong Shengnan³

1. The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000;
2. Henan Institute for Occupational Medicine, Zhengzhou, 450000;
3. School of Nuclear Science and Technology, Nanhua University, Hengyang,Hunan, 421001

Received:2019-04-17 Online:2019-06-20 Published:2020-07-21

Abstract

Abstract: We illustrate environmental and radiation control compliance evaluation formedical accerators, with a Halcyonsystemtaken as an example. Based on analyses of relevant ray parameters and workload, we calculate theshielding thickness of chamber wall in all directions, and the dose rate levelof concern as well. We then optimize the shielding design and construction scheme for the rebuilt of chamber, design an economical and reliable radiation protection scheme, and evaluate the role of self-shielding structure in the shieldingdesign, according to NCRP No.151 and GBZ/T 201, so as to demonstrate that thescheme conforms to relevant laws, regulations and standards. This can also provide a reference for similar projects.

Key words: Halcyon accelerator, Self-shielding, Radiotherapy, Shielding calculation, Radiation protection

CLC Number:

Yang Jun, Lv Yvming, Dong Shengnan. Radiation Protection Design of a Halcyon Self-shielding Medical Linear Accelerator Facility[J].RADIATION PROTECTION BULLETIN, 2019, 39(3): 22-25.

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Radiation Protection Design of a Halcyon Self-shielding Medical Linear Accelerator Facility

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