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在不同操作模式下对HIMM加速器大厅和治疗室的诱导放射性分析

Fuhong Ma¹, Wuyuan Li², Yao Yang³

¹Lanzhou Ion Therapy Co., Ltd, Lanzhou, 730000, China.

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

|October 11, 2025

概括

重离子医疗机器 (HIMM) 的运行会导致放射性,但剂量对工人和公众来说仍然是安全的. 在手术后30天内,残留辐射恢复到背景水平.

科学领域:

医学物理医学物理
辐射保护辐射保护
核工程核工程是指核工程.

背景情况:

重离子医疗机器 (HIMM) 的运行通过中子激活和核反应诱导放射性.
了解诱导放射性对于为工作人员和公众设计辐射安全协议至关重要.

研究的目的:

评估HIMM加速器和处理室中的诱导放射性.
为了评估不同操作模式和冷却周期下的辐射剂量.
分析水束倾倒在最小化激活方面的有效性.

主要方法:

在加速器和治疗室监测吸收剂量和残留剂量.
在调试和处理操作模式下模拟诱导放射性.
分析放射性核素衰变特征及其对剂量速率的影响.

主要成果:

在加速器大厅的职业剂量在使用一年后仍低于安全限值.
剩余剂量率在30天内恢复到背景水平.
治疗室的剂量率取决于最后一个照射日;水束倾倒将前壁激活最小化.

结论:

HIMM的运行对工作人员或公众没有过度的辐射风险.
确定的冷却期和运行协议确保了辐射安全.
水束倾倒是管理诱导放射性的有效组成部分.

关键词:

加速器加速器加速器加速器加速器加速器加速器碳离子疗法是一种碳离子疗法.循环辐射辐射是一种循环辐射.弗鲁卡弗鲁卡弗鲁卡弗鲁卡诱导的放射性活动.

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