在WEST上使用新的X射线成像晶体光谱仪测量电子和离子温度
A Da Ros1, D Vezinet1, G Colledani1
1CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France.
The Review of scientific instruments
|April 8, 2024
概括
在WEST托卡马克的新型X射线成像水晶光谱仪 (XICS) 测量了Ar XVII光谱. 这种诊断提供了电子和离子温度概况,尽管有来自制动辐射和线的限制.
科学领域:
- 血物理学的等离子体物理学
- 频谱学是一种光谱学.
- 核聚变能源的研究.
背景情况:
- 对于 WEST 托卡马克,需要先进的诊断来进行等离子体表征.
- 射线光谱对于理解高温等离子体至关重要.
研究的目的:
- 介绍一个新的X射线成像水晶光谱仪 (XICS) 的设计和性能.
- 为了验证XICS诊断器测量ArXVII光谱并推导血参数.
主要方法:
- 在 WEST 托卡马克上安装和调整 XICS 诊断.
- 使用可互换的晶体用于Ar XVII,Ar XVIII和Fe XXV的光谱.
- 使用ToFu Python库的合成诊断来进行性能分析.
- 应用断层影像反向来得出局部温度概况.
主要成果:
- XICS成功测量了Ar XVII光谱,揭示了扭曲和意想不到的 (W) 光谱线.
- 提取了视线整合的电子和离子温度配置文件.
- 断层影像逆向提供了局部温度概况,显示与WEST的电子循环子发射 (ECE) 诊断器良好一致.
结论:
- 对于 WEST 托卡马克等离子体来说,XICS 是一个有价值的诊断工具.
- 限制包括车辐射辐射和影响电子温度计算的W光谱线.
- 需要进一步的研究,以了解来自不同光谱线比率的温度概况的系统差异.
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