在EAST中对成像中性粒子分析仪进行实验验证
Yang Liu1,2, Ming Xu2, Huishan Cai1
1School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China.
The Review of scientific instruments
|February 25, 2025
概括
一种新的成像中性粒子分析仪 (INPA) 能够有效地检测到托卡马克中的快速离子. 这种先进的系统准确地测量粒子能量和分布,即使在等离子体不稳定性如牙崩时也是如此.
科学领域:
- 血物理学的等离子体物理学
- 核聚变能源的研究.
- 粒子诊断技术 粒子诊断技术
背景情况:
- 快速离子 (FI) 在托卡马克等离子体的限制和加热中起着至关重要的作用.
- 精确测量FI行为对于理解和控制聚变等离子体至关重要.
- 现有的诊断工具在FI的空间和能量分辨率方面存在局限性.
研究的目的:
- 为实验高级超导托卡马克 (EAST) 设计和实施一个成像中性粒子分析仪 (INPA).
- 描述INPA的检测能力,包括转角和能量分辨率.
- 通过测量在牙碰撞期间的FI再分配来验证INPA的性能.
主要方法:
- 使用碳片来电离充电交换中性粒子.
- 采用闪光灯屏幕来区分粒子能量和辐射分布.
- 执行基于建模的能量校准,并用实验数据验证.
主要成果:
- 在EAST.上成功设计和实施INPA系统.
- 证明了INPA测量角形状和能量分辨率的能力.
- 通过实验测量验证了能量校准.
- 在牙事故中有效记录了快速离子再分配,证实了系统的功能.
结论:
- INPA是一个功能性和有效的诊断工具,用于tokamaks的快速离子研究.
- INPA提供了关于快离子行为的宝贵数据,这对融合能源研究至关重要.
- 该系统捕捉动态事件的能力,比如牙崩,突出了它对等离子体物理研究的重要性.
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