First results of electron temperature measurements by the use of multi-pass Thomson scattering system in GAMMA 10 | Zendy

Masayuki Yoshikawa | Zendy; Ryo Yasuhara | Zendy; Kazuhide NAGASU | Zendy; Yukiho Shimamura | Zendy; Y. Shima | Zendy; J. Kohagura | Zendy; M. Sakamoto | Zendy; Y. Nakashima | Zendy; T. Imai | Zendy; M. Ichimura | Zendy; I. Yamada | Zendy; H. Funaba | Zendy; K. Kawahata | Zendy; T. Minami | Zendy

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First results of electron temperature measurements by the use of multi-pass Thomson scattering system in GAMMA 10

Author(s) -

Masayuki Yoshikawa,

Ryo Yasuhara,

Kazuhide NAGASU,

Yukiho Shimamura,

Y. Shima,

J. Kohagura,

M. Sakamoto,

Y. Nakashima,

T. Imai,

M. Ichimura,

I. Yamada,

H. Funaba,

K. Kawahata,

T. Minami

Publication year - 2014

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.4885542

Subject(s) - thomson scattering , scattering , electron temperature , raman scattering , signal (programming language) , electron , optics , physics , materials science , computational physics , raman spectroscopy , computer science , nuclear physics , programming language

A multi-pass Thomson scattering (TS) has the advantage of enhancing scattered signals. We constructed a multi-pass TS system for a polarisation-based system and an image relaying system modelled on the GAMMA 10 TS system. We undertook Raman scattering experiments both for the multi-pass setting and for checking the optical components. Moreover, we applied the system to the electron temperature measurements in the GAMMA 10 plasma for the first time. The integrated scattering signal was magnified by approximately three times by using the multi-pass TS system with four passes. The electron temperature measurement accuracy is improved by using this multi-pass system

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