| 姜文华,王晓涛,李雪琴,等.某医用质子治疗机房迷路设计探讨[J].中华放射医学与防护杂志,2024,44(11):960-964.Jiang Wenhua,Wang Xiaotao,Li Xueqin,et al.Discussion on maze design of a medical proton therapy system[J].Chin J Radiol Med Prot,2024,44(11):960-964 |
| 某医用质子治疗机房迷路设计探讨 |
| Discussion on maze design of a medical proton therapy system |
| 投稿时间：2023-09-26 |
| DOI：10.3760/cma.j.cn112271-20230926-00103 |
| 中文关键词: 医用质子加速器 迷道口 中子周围剂量当量率 |
| 英文关键词:Medical proton accelerator Labyrinth entrance Neutron ambient dose equivalent rate |
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| 中文摘要: |
| 目的 探讨某质子治疗系统迷道设计的可行性。方法 依据医用质子治疗系统机房建设方案,采用数值解析公式估算迷道口外中子周围剂量当量率,与监测结果进行比较分析。结果 质子治疗系统迷道口外估算中子周围剂量当量率在3.85×10-2~7.57 μSv/h之间,仪器监测的中子周围剂量当量率＜1.56 μSv/h。结论 回旋加速器机房经5段迷道,治疗室经3段迷道,迷道设计有一定长度和宽度,迷道口外的周围剂量剂量率水平是可以接受的。 |
| 英文摘要: |
| Objective To explore the feasibility of the maze design of a proton therapy system. Methods According to the construction scheme of a medical proton therapy system, the ambient neutron dose equivalent rate outside the maze entrance was estimated by numerical analytical formula, and compared with the monitoring result. Results The ambient neutron dose equivalent rate was estimated at between 3.85×10-2 μSv/h and 7.57 μSv/h and measured to be ≤1.56 μSv/h. Conclusions The maze entrance was designed to have 5 sections of tunnel for cyclotron room and 3 sections of tunnel for treatment room, respectively, each with designated length and width. The levels of ambient dose equivalent rate outside the maze entrance is acceptable. |
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