用于测量准环对称仿星器电子温度的诊断方法及系统

By employing an electronic cyclotron radiation diagnostic system in a quasi-annular stellarator, and utilizing a combination of quasi-optical and electronic modules, collimation and full-link calibration of the Gaussian beam were achieved. This solved the problems of poor three-dimensional magnetic field adaptability and polarization measurement mismatch in existing technologies, improved the accuracy and anti-interference capability of electronic temperature measurement, and ensured the accuracy and stability of measurement data.

CN122149647BActive Publication Date: 2026-07-17SOUTHWEST JIAOTONG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Filing Date
2026-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ECE diagnostic techniques in quasi-ring symmetric stellarators suffer from poor three-dimensional magnetic field configuration adaptability, difficulty in balancing spatial coverage and resolution, mismatch between polarization measurement and inversion algorithms, and insufficient anti-interference and low-noise performance, thus failing to provide high-precision electronic temperature measurement data.

Method used

An electron cyclotron radiation diagnostic system, including a quasi-optical module, waveguide, electronics module, and blackbody source, is used. The signal is focused and calibrated by setting up a symmetrical metal mirror group. By combining the correlation between the frequency of electron secondary cyclotron radiation and spatial position, the collimation and full-link calibration of the Gaussian beam are achieved. The signal is processed by multi-stage filtering and low-noise amplification to invert the plasma electron temperature and its spatial distribution.

Benefits of technology

It improves the accuracy and reliability of electronic temperature measurement, solves the problems of poor three-dimensional magnetic field configuration adaptability and polarization measurement mismatch, enhances anti-interference ability and low-noise performance of signal processing, and ensures the accuracy and stability of measurement data.

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Abstract

本发明涉及电子温度诊断技术领域,提供了用于测量准环对称仿星器电子温度的诊断方法及系统,包括建立辐射频率与空间位置的关联关系,通过反射镜组,将等离子体微波辐射聚焦为高斯波束并定焦于等离子体芯部,匹配复杂三维磁场;通过计算确定有效测量范围,让高斯波束精准覆盖该范围,通过波束聚焦提升分辨率;利用黑体源完成诊断全链路标定,建立辐射信号强度与电子温度的定量对应关系,多维度关联反演电子温度分布;将电子学模块分射频、中频部分层设计,通过多级滤波、低噪声放大处理信号,搭配适配波导管减少损耗,增设数据校验步骤保障测量数据可靠。
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