开发和应用一种对离子敏感的探头,用于直子体等离子体诊断
Geyi Chen1, Ruixin Yuan1, Zuyu Zhang1
1State Key Laboratory of Nuclear Physics and Technology, School of Physics, Fusion Simulation Center, Peking University, Beijing 100871, China.
The Review of scientific instruments
|July 8, 2025
概括
一个离子敏感探头 (ISP) 为PKU血测试 (PPT) 设备开发,证明.
科学领域:
- 等离子体物理学的物理学
- 诊断技术 诊断技术
背景情况:
- 赫利康等离子器件需要可靠的诊断.
- 现有的探测器在直径较大的系统中存在局限性.
研究的目的:
- 为PKU等离子测试 (PPT) 装置设计和实施一种离子敏感探头 (ISP).
- 为了评估ISP在大直径的子等离子体中的性能.
- 研究电极材料对ISP诊断的影响.
主要方法:
- 在单环天线直子等离子体放电中实现ISP.
- 对于ISP电极的材料选择实验.
- 与兰格穆尔探测器测量的比较分析.
- 系统地研究等离子体参数 (密度,温度) 作为射频功率和磁场的函数.
主要成果:
- 被确定为ISP的最佳电极材料.
- 由于电子-离子能量放松,离子和电子温度约为1 eV.
- 与Langmuir探头相比,ISP显示出高可靠性,最大偏差为8% (密度) 和12% (电子温度).
- 随着射频功率的增加,等离子体密度增加;温度保持稳定.
- 对磁场的离子温度反应是复杂的.
结论:
- ISP是可靠的诊断对子等离子体,特别是在大直径的设备.
- 该研究验证了ISP的准确性和适用性.
- ISP技术可以扩展到其他磁束聚变和等离子处理应用.
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