辐射防护通讯 ›› 2019, Vol. 39 ›› Issue (3): 22-25.

• 研究通报 • 上一篇    下一篇

屏蔽结构医用直线加速器Halcyon机房的放射防护设计

杨军1, 吕玉民2, 董胜楠3   

  1. 1.郑州大学第三附属医院, 郑州, 450000;
    2.河南省职业病防治研究院, 郑州, 450000;
    3.南华大学核科学技术学院,湖南 衡阳, 421001
  • 收稿日期:2019-04-17 出版日期:2019-06-20 发布日期:2020-07-21
  • 通讯作者: 吕玉民,医学博士,研究员。 E-mail: lym636160@sina.com
  • 作者简介:杨军(1984—),男,2007年毕业于南华大学生物医学工程专业; 2016年毕业于清华大学生物医学工程专业医学物理方向,工程硕士; 助理研究员。
  • 基金资助:
    河南省科技发展攻关项目(182102310700)

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

Yang Jun1, Lv Yvming2, Dong Shengnan3   

  1. 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

摘要: 以某医院核技术应用项目Halcyon加速器为例,通过分析相关射线参数与工作负荷,依据 NCRP No.151和GBZ /T 201,计算Halcyon机房各方向屏蔽墙所需的厚度和关注点的剂量率水平,对改建机房的屏蔽设计与施工方案进行优化,设计了经济可靠的放射防护方案,评估自屏蔽结构在屏蔽设计中的作用,并论证设计的自屏蔽加速器的防护方案效果符合相关法律法规与标准要求,为此类自屏蔽加速器项目的环评和控评提供参考。

关键词: Halcyon加速器, 自屏蔽, 放射治疗, 屏蔽计算, 辐射防护

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

中图分类号: 

  • TL7