Design of the polarization multi-pass Thomson scattering system | Zendy

Ryo Yasuhara | Zendy; Masayuki Yoshikawa | Zendy; Masahiro Morimoto | Zendy; I. Yamada | Zendy; K. Kawahata | Zendy; H. Funaba | Zendy; Y. Shima | Zendy; J. Kohagura | Zendy; M. Sakamoto | Zendy; Y. Nakashima | Zendy; T. Imai | Zendy; T. Minami | Zendy

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Design of the polarization multi-pass Thomson scattering system

Author(s) -

Ryo Yasuhara,

Masayuki Yoshikawa,

Masahiro Morimoto,

I. Yamada,

K. Kawahata,

H. Funaba,

Y. Shima,

J. Kohagura,

M. Sakamoto,

Y. Nakashima,

T. Imai,

T. Minami

Publication year - 2012

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 - 10.1063/1.4734495

Subject(s) - thomson scattering , scattering , optics , polarization (electrochemistry) , coaxial , physics , computer science , telecommunications , chemistry

A novel configuration of the multi-pass Thomson scattering (TS) system is proposed to improve the time resolution and accuracy of electron temperature measurements by use of a polarization control technique. This configuration can realize a perfect coaxial multi-passing at each pass, and the number of round trips is not limited by the optical configuration. To confirm the feasibility of the new method, we installed this system in the GAMMA 10 plasma system. As a result, the integrated scattering signal of the double-pass configuration is about two times larger than that of the single-pass configuration. These results are in good agreement with the design

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