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开发一个紧的磁谱仪,用于OMEGA激光设施和国家点火设施
J A Pearcy1, L Russell1, N V Kabadi1,2
1Massachusetts Institute of Technology, Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
The Review of scientific instruments
|October 3, 2024
概括
一个新的紧型磁谱仪 (MagSpec) 测量低能质子光谱 (1-20 MeV) 用于高能密度物理实验. 这种诊断适用于NIF和OMEGA等设施的高碎片环境.
科学领域:
- 高能量密度物理学的物理学
- 核诊断技术 核诊断技术 核诊断技术
- 粒子光谱学 粒子光谱学
背景情况:
- 质子光谱对于理解高能量密度物理实验至关重要.
- 现有的诊断系统与低能质子或高碎片条件作斗争.
- 需要在OMEGA和国家点火设施 (NIF) 等设施中进行强大的诊断.
研究的目的:
- 开发和实施一个紧的磁谱仪 (MagSpec) 用于测量质子光谱.
- 专门针对1-20 MeV的能量范围,重点是1-6 MeV的质子.
- 在激光驱动的实验中,提供适合高碎片环境的诊断.
主要方法:
- 使用CR-39塑料探测器进行质子轨迹记录.
- 采用磁场,根据质子的能量分散质子.
- 实施差分过以提高光谱分辨率.
- 设计一个紧的光谱仪,用于集成到现有的实验设置.
主要成果:
- MagSpec成功地测量了1-20 MeV范围内的质子光谱.
- 诊断器有效捕获低能质子 (1-6 MeV).
- CR-39轨道的空间分布与质子能量光谱相关.
结论:
- 开发的MagSpec是高能量密度物理学中质子光谱的可行诊断.
- 在低能质子测量和高碎片条件下,MagSpec解决了以前诊断的局限性.
- 对NIF和OMEGA的实施证明了它的实际适用性.
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