通过 HL-3 托卡马克上 HCOOH 激光干涉仪的三个边界通道测量电子密度

IF 1.6 3区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

Plasma Science & Technology Pub Date : 2023-12-05 DOI:10.1088/2058-6272/ad127a

Junren Mou, Yonggao Li, Yuan Li, Zaihong Wang, Baogang Ding, Haoxi Wang, Jiang Yi, Zhongbing Shi

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引用次数: 0

摘要

远红外干涉仪被广泛用于测量磁约束聚变等离子体器件中的电子密度。采用甲酸激光(HCOOH, f = 694 GHz)为HL-3型托卡马克研制了一种新型FIR激光干涉仪，该干涉仪共有13个通道(包括8个水平通道和5个倾斜通道)。为了研究边界电子密度活动，在2023年的实验活动中，刚刚开发并投入运行了位于Z = - 97， - 76, 76.5 cm的三个水平干涉测量通道，时间分辨率< 1.0 μs，线积分电子密度分辨率为~ 7.0×1016 m−2。本文主要介绍了三通道干涉测量系统的光学设计、光学元件和HL-3的最新实验结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Electron density measurement by the three boundary channels of HCOOH laser interferometer on the HL-3 tokamak

Far-infrared (FIR) interferometer is widely used to measure the electron density in the magnetically confined fusion plasma devices. A new FIR laser interferometer with a total of 13 channels (including 8 horizontal channels and 5 oblique channels) is under development for the HL-3 tokamak by using the formic-acid laser (HCOOH, f = 694 GHz). In order to investigate the boundary electron density activity, three horizontal interferometry channels located at Z = −97, −76, 76.5 cm have just been developed and put into operation in 2023 experimental campaign, with a time resolution of < 1.0 μs and line-integrated electron density resolution of ~ 7.0×1016 m−2. This paper mainly focuses on the optical design of the three-channel interferometry system, optical elements and recent experimental result on HL-3.

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来源期刊

Plasma Science & Technology 物理-物理：流体与等离子体

CiteScore

3.10

自引率

11.80%

发文量

3773

审稿时长

3.8 months

期刊介绍： PST assists in advancing plasma science and technology by reporting important, novel, helpful and thought-provoking progress in this strongly multidisciplinary and interdisciplinary field, in a timely manner. A Publication of the Institute of Plasma Physics, Chinese Academy of Sciences and the Chinese Society of Theoretical and Applied Mechanics.