Far infrared laser interferometer system on the Large Helical Device

被引：95

作者：

Kawahata, K ^{[1
]}

Tanaka, K

Ito, Y

Ejiri, A

Okajima, S

机构：

[1] Natl Inst Fus Sci, Toki 50952, Japan

[2] Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo 1130033, Japan

[3] Chubu Univ, Dept Appl Phys, Kasugai, Aichi 487, Japan

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1999年 / 70卷 / 01期

关键词：

D O I：

10.1063/1.1149394

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A multichannel far-infrared laser interferometer system has been developed for the measurement of the spatial and temporal behaviors of the electron density on the Large Helical Device (LHD) at the National Institute for Fusion Science. Of several candidates for high power laser sources a 119 mu m CH3OH laser was taken as a probing light. The optical configuration is of the Michelson interferometer type with 13 channels. The optical system of the interferometer is mounted on a massive stainless frame floated on three vibration isolating mounts. The resolution of the fringe counters is 1/100 fringes, and it corresponds to a line averaged density of 5.6 X 10(16) m(-3) at the central chord. Preliminary results have been obtained in the initial experiments on the LHD. (C) 1999 American Institute of Physics. [S0034-6748(99)63601-2].

引用

页码：707 / 709

页数：3

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