两个颜色的CO2激光干扰仪的实时处理系统用于JT-60SA中的密度反控制
Y Ohtani1, H Sasao1, T Nakano1
1Naka Institute for Fusion Science and Technology, National Institutes for Quantum Science and Technology, Naka, Ibaraki 311-0193, Japan.
The Review of scientific instruments
|July 17, 2024
概括
对于JT-60SA托卡马克来说,一个新的实时处理系统使用双色二氧化碳激光干扰仪监测等离子体密度. 它可以检测异常事件,确保核聚变研究的可靠密度反控制.
科学领域:
- 等离子体物理学的物理学
- 核聚变能源工程 核聚变能源工程
- 光学诊断器的光学诊断系统
背景情况:
- 对于有效的等离子控制,JT-60SA托卡马克需要精确的电子密度监测.
- 传统的干涉测量系统可能容易受到异常事件的干扰.
研究的目的:
- 开发和实施一个强大的实时处理系统,用于JT-60SA上的二色CO2激光干扰仪.
- 通过准确检测和减轻异常事件来增强密度反控制.
主要方法:
- 为双色二氧化碳激光干扰仪开发实时处理系统.
- 实施边缘跳跃检测逻辑,其值为π/2,以识别异常事件.
- 利用系统作为密度监测器来实时反控制.
主要成果:
- 该系统成功地检测到由光束移位和波长变化引起的边缘跳跃.
- 异常事件会触发实时反控制的中止,防止数据损坏.
- 电子密度 (NL) 控制在比参考值低16.8%±6.6%的水平.
结论:
- 开发的实时处理系统提高了JT-60SA密度反控制的可靠性.
- 新的边缘跳跃检测能力有效地减轻了异常事件造成的干扰.
- 该系统作为一个重要的密度监测器,用于先进的聚变等离子体操作.
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