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基于质子加速器的中子捕获疗法的束形组件中混合材料调节器的设计

Yulin Ge¹, Yao Zhong², Nan Yuan²

¹Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai, Guangdong, 519082, China; United Laboratory of Frontier Radiotherapy Technology of Sun Yat-sen University & Chinese Academy of Sciences Ion Medical Technology Co., Ltd, Guangzhou, China.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

|September 14, 2024

概括

这项研究详细介绍了一种新的束形组件,用于使用低功率质子加速器进行中子捕获疗法 (BNCT) 研究. 该设计符合国际原子能机构对中子流和辐射组件的建议,确保安全和有效性.

科学领域:

医学物理医学物理
加速器物理学的物理学
材料科学材料科学材料科学

背景情况:

基于加速器的中子捕获疗法 (BNCT) 正在推进新设施开发.
孙中山大学正在建立一个使用8 MeV,CW 3 mA质子加速器的BNCT研究终端.

研究的目的:

设计和评估用于BNCT研究的低功率质子加速器的束形组件 (BSA).
确保BSA符合临床应用的严格安全和性能标准.

主要方法:

使用ENDF/B和JENDL核数据库进行FLUKA模拟.
使用一个复合型调节材料 (Mg,Al,F,O,Li).
进行了热分析,以评估光束条件下的材料完整性.

主要成果:

实现了1.57×10^9 n/cm^2/s. 的超热中子束流量.
快速中子和马射线成分分别为1.49×10^-13 Gy·cm^2和8.12×10^-14 Gy·cm^2,符合国际原子能机构的建议.
的最大目标温度达到706.5K,没有结构材料的化.

结论:

开发的光束造型组件适用于BNCT研究的孙中山大学的8 MeV质子加速器.
该设计符合基于加速器的BNCT的安全和性能标准.
复合调节器材料表现出有效的中子调节和热稳定性.

关键词:

加速器中子源是加速器中子源.在 BNCT 上,你会发现.梁形成型组件组合梁形成型组合复合材料是一种复合材料.中子目标是中子目标.质子加速器中的质子加速器.

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