为泰拉瓦特级高功率激光设施的辐射屏蔽设计
Shenghan Cheng1, Zhilin Chen, Yu Li
1Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China.
Health physics
|September 19, 2025
概括
对于泰拉瓦特级 (TW) 激光设备而言,有效的辐射屏蔽至关重要. 战略屏蔽设计,包括加厚的墙壁和移动屏障,成功地将人员和公众的辐射暴露降到最低.
科学领域:
- 核物理 核物理 核物理
- 激光技术 激光技术 激光技术
- 辐射安全 辐射安全
背景情况:
- 高功率激光设备产生各种粒子辐射 (中子,电子,光子).
- 开发有效的辐射屏蔽对于人员和公共安全至关重要.
- 特拉瓦特级 (TW) 激光系统面临着独特的辐射屏蔽挑战.
研究的目的:
- 模拟和设计TW激光设施的辐射屏蔽.
- 评估不同操作模式下的辐射剂量分布.
- 为了确保辐射剂量保持在法规限制之内.
主要方法:
- 使用蒙特卡洛代码JMCT进行模拟和设计.
- 在整个设施中计算辐射剂量分布.
- 模拟的单枪和多枪作战场景.
主要成果:
- 战略屏蔽,包括加厚的墙壁和移动措施,有效地减轻辐射风险.
- 在控制室和清洁室的职业暴露剂量低于3mSv/年.
- 公共剂量在高实验频率下保持在0.1mSv/年以下.
结论:
- 拟议的屏蔽策略确保了TW级激光设施的安全.
- 该设计方法为类似的高功率激光系统提供了宝贵的参考.
- 通过优化屏蔽设计,可以达到规定的辐射剂量限制.
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