Beam emission spectroscopy with radially and poloidally elongated optical sightlines

M. Ono, K. Ida, T. Kobayashi, M. Yoshinuma, Y. Nakamura, M. Kisaki, H. Nakano, C. Moon

研究成果: Contribution to journalArticle査読

抄録

Beam emission spectroscopy is widely used as local density fluctuation measurement of fusion plasmas. We have installed a beam emission spectroscopy system in the large helical device (LHD) with radially and poloidally elongated optical configuration to enhance both signal-to-noise ratio and wavenumber sensitivity in radial and poloidal directions. The calculation considering the integral effect of the line of sight showed the radially and poloidally elongated sightlines have increased sensitivity compared with the square shaped bundle design of the same sampling area.

本文言語英語
論文番号11E559
ジャーナルReview of Scientific Instruments
87
11
DOI
出版ステータス出版済み - 11 1 2016
外部発表はい

All Science Journal Classification (ASJC) codes

  • Instrumentation

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