在HL-3托卡马克上的电子旋转子发射准光学传输系统
The Review of scientific instruments
|November 22, 2024
概括
为HL-3托卡马克开发了一种新的准光学电子旋发射传输系统. 该系统增强了空间分辨率和信号噪声比,用于研究磁动力学不稳定性.
科学领域:
- 等离子体物理学的物理学
- 核聚变能源研究研究
- 诊断系统 诊断系统
背景情况:
- 磁动力学 (MHD) 不稳定性对于理解核聚变能源至关重要.
- 电子旋发射 (ECE) 是研究这些不稳定性的关键诊断.
- 之前的ECE系统缺乏对HL-3托卡马克进行详细的MHD研究所需的空间分辨率和信号噪声比.
研究的目的:
- 为HL-3托卡马克建立一个新的准光学 (QO) 电子旋发射 (ECE) 传输系统.
- 为了实现高极形空间分辨率和MHD不稳定性研究的信号噪声比.
- 为了验证系统在特定磁面上准确测量MHD不稳定性的能力.
主要方法:
- 在真空室内安装一个聚焦QO镜组合.
- 开发一种具有低插入损失 (<1.5dB) 的高效模式转换器 (TE10到HE11).
- 构建一个长达30米的波纹超大波导,并测量了传输损失 (6-10dB超过60-120GHz).
- 利用实验室测试,理论计算和合成ECE模拟进行验证.
主要成果:
- 高斯波束传输满足在q=1/2/3表面 (m=3/6/9) 上测量MHD不稳定性的空间分辨率要求.
- 对于关键的2/1和3/2模式,已证明具有良好的诊断极形空间分辨率.
- 模式转换器表现出高效率,波导传输损失的特点是.
- 极化调整数据为复杂的输电线路提供了参考.
结论:
- 新建立的QO ECE传输系统适合在HL-3托卡马克上进行MHD不稳定性研究.
- 该系统为先进的等离子体物理研究提供了必要的空间分辨率和信号质量.
- 这一发展为未来基于ECE的HL-3研究提供了重要的支持.
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