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在CERN的LHC加速器中激活电缆的辐射区分和清除方法
Patrycja Dyrcz1, Angelo Infantino1, Nabil Menaa1
1European Organization for Nuclear Research-CERN, Radiation Protection Group, Meyrin, 1211, Switzerland.
概括
一种新方法将激活电缆分类到高发光大哈德龙碰撞机 (HL-LHC) 中,以获得监管许可. 这项研究支持HL-LHC升级期间的安全材料管理.
科学领域:
- 核物理 核物理 核物理
- 粒子加速器技术 粒子加速器技术
- 辐射保护 辐射保护
背景情况:
- 高发光大强子对撞机 (HL-LHC) 的升级需要对激活材料进行详细的表征.
- 监管合规要求精确地划分激活组件,包括电缆,以确保安全清除.
研究的目的:
- 开发和验证HL-LHC中激活电缆的放射分区和分类方法.
- 确保对材料清理的瑞士辐射保护法规的遵守.
主要方法:
- 优化电缆元素组成.
- 使用玛光谱 (GS) 和总玛计数 (TGC) 验证蒙特卡罗FLUKA模拟.
- 在LHC点1和点5的电缆的放射性区域划分,包括道和服务廊.
主要成果:
- 验证了用于激活电缆表征的模拟方法.
- 在拆卸前对电缆进行精确的放射性分类.
- 为电缆区划提出了一个保守的缩放因子.
结论:
- 开发的方法使激活的HL-LHC电缆能够有效地进行放射性划分和清除.
- 该研究为铜电缆的激活场景提供了保守的优点数字 (FOM).
- 这项工作对于HL-LHC运行期间的安全和合规的退役和材料管理至关重要.
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