缓解电磁脉冲干扰森抛物线离子谱仪在XG-III激光设施的电磁脉冲
Zihao Li1, Ning Kang2,3, Jian Teng4
1School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
The Review of scientific instruments
|January 10, 2024
概括
来自高功率激光器的强烈电磁脉冲 (EMP) 可以损坏敏感设备. 屏蔽设计,包括金属和吸收材料,有效地减少激光设施中的EMP.
科学领域:
- 物理 物理学 物理
- 激光与等离子体相互作用
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 高功率激光系统产生强烈的电磁脉冲 (EMP),对森抛物线离子光谱仪等敏感诊断仪器构成威胁.
- 这些EMP源于高功率激光与固体目标的相互作用,为大型激光设施的实验设置带来了挑战.
研究的目的:
- 设计和评估Thomson抛物线离子光谱仪对强烈EMP的电磁屏蔽策略.
- 为了研究金属屏蔽子和额外的保护措施在激光设施内减轻EMP的有效性.
主要方法:
- 采用1毫米孔径的金属屏蔽来屏蔽森抛物线离子光谱仪.
- 进行了模拟,以评估子对电磁波的屏蔽效果.
- 分析了激光加速的相对论电子对屏蔽环境中的EMP产生的影响.
- 引入了一个墙和一个电磁吸收材料 (ECCOSORB AN-94),以进一步减少电子传播.
主要成果:
- 屏蔽将内部最大的EMP振幅降低到5.2kV/m.
- 模拟证实了子在屏蔽电磁波方面的有效性.
- 从子表面逃逸的相对论电子的电荷积累被确定为检测到EMP的来源.
- 添加一个墙和吸收材料显著阻断了电子的传播,进一步减轻EMP.
结论:
- 多层屏蔽方法,包括金属,墙和吸收材料,可以有效地减轻高功率激光环境中的EMP.
- 了解相对论电子的作用对于设计强大的电磁屏蔽解决方案至关重要.
- 这些发现为大型激光基础设施的电磁屏蔽设计提供了基础的见解.
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