Discussion on maze design of a medical proton therapy system
10.3760/cma.j.cn112271-20230926-00103
- VernacularTitle:某医用质子治疗机房迷路设计探讨
- Author:
Wenhua JIANG
1
;
Xiaotao WANG
;
Xueqin LI
;
Yinning WANG
;
Zhongyang XU
Author Information
1. 生态环境部核与辐射安全中心，北京 102488
- Keywords:
Medical proton accelerator;
Labyrinth entrance;
Neutron ambient dose equivalent rate
- From:
Chinese Journal of Radiological Medicine and Protection
2024;44(11):960-964
- CountryChina
- Language:Chinese
-
Abstract:
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.
