用于C-2实验的双色二氧化碳/氦氖激光干涉仪。

Two-color CO2/HeNe laser interferometer for C-2 experiment.

作者信息

Gornostaeva O, Deng B H, Garate E, Gota H, Kinley J, Schroeder J, Tuszewski M

机构信息

Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688, USA.

出版信息

Rev Sci Instrum. 2010 Oct;81(10):10D516. doi: 10.1063/1.3478983.

DOI:10.1063/1.3478983

PMID:21033871

Abstract

A six-channel two-color interferometer has been developed for plasma electron density measurements in the C-2 field reversed configuration experiment. A CO(2) laser is utilized as the main probe beams, while copropagating visible HeNe laser beams are mainly sensitive to vibration. Density measurements in C-2 plasmas have shown that this is a reliable turn-key system. The maximum residual phase noise after vibration compensation is less than ±5°, corresponding to a line integral density of 3×10(18) m(-2). The time resolution for routine operation is 2 μs.

摘要

已开发出一种六通道双色干涉仪，用于在C - 2场反向配置实验中测量等离子体电子密度。使用二氧化碳激光器作为主要探测光束，而同向传播的可见氦氖激光束主要对振动敏感。在C - 2等离子体中的密度测量表明，这是一个可靠的交钥匙系统。振动补偿后的最大残余相位噪声小于±5°，对应线积分密度为3×10¹⁸ m⁻²。常规操作的时间分辨率为2 μs。