Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Rapid Communications
First Results of Electron Temperature Measurements with a Multi-Pass Thomson Scattering System in the Tandem Mirror GAMMA 10
Masayuki YOSHIKAWARyo YASUHARAKazuhide NAGASUYuuki SHIMAMURAYoriko SHIMAJunko KOHAGURAMizuki SAKAMOTOYousuke NAKASHIMATsuyoshi IMAIMakoto ICHIMURAIchihiro YAMADAHisamichi FUNABAKazuo KAWAHATATakashi MINAMI
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2014 Volume 9 Pages 1202126

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Abstract

A multi-pass Thomson scattering (TS) system has the advantage of enhancing scattered signals. We constructed a multi-pass TS system modeled on the GAMMA 10 TS system; the new system has a polarization-based configuration with an image relaying system. For the first time, we used the new system to measure electron temperatures in the GAMMA 10 plasma. By using the multi-pass TS system with four passes, the integrated scattering signal was magnified by approximately a factor of three.

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© 2014 by The Japan Society of Plasma Science and Nuclear Fusion Research
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