Subterahertz gyrotron developments for collective Thomson scattering in LHD

Material type: 文書・図像類

Author: NOTAKE, Tほか

Publisher: American Institute of Physics

Publication date: 2008-10

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Note (General)：: Collective Thomson scattering (CTS) is expected to provide the spatially resolved velocity distribution functions of not only thermal and tail ions bu...

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Material Type: 文書・図像類
Title: Subterahertz gyrotron developments for collective Thomson scattering in LHD
Author/Editor: NOTAKE, T
SAITO, T
TATEMATSU, Y
KUBO, S
SHIMOZUMA, T
TANAKA, K
NISHIURA, M
FUJII, A
AGUSU, La
OGAWA, I
IDEHARA, T
Author Heading: NOTAKE, T
SAITO, T
TATEMATSU, Y
KUBO, S
SHIMOZUMA, T
TANAKA, K
NISHIURA, M
FUJII, A
AGUSU, La
OGAWA, I
IDEHARA, T
Publication, Distribution, etc.: American Institute of Physics
Publication Date: 2008-10
Publication Date (W3CDTF): 2008-10
Periodical title: REVIEW OF SCIENTIFIC INSTRUMENTS
No. or year of volume/issue: 79 10
Volume: 79
Issue: 10
Pages: 10E732-1-10E732-3
Text Language Code: eng
Target Audience: 一般
Note (General): Collective Thomson scattering (CTS) is expected to provide the spatially resolved velocity distribution functions of not only thermal and tail ions but also alpha particles resulting from fusion reactions. CTS using gyrotrons with frequency higher than the conventional ones used for plasma heating would have advantages to alleviate refraction, cutoff effects, and background electron cyclotron emission noise. Therefore, a high-power pulse gyrotron operating at approximately 400 GHz is being developed for CTS in Large Helical Device (LHD). A single-mode oscillation with a frequency greater than 400 GHz, applying the second-harmonic resonance, was successfully demonstrated in the first stage. At the same time, concrete feasibility study based on ray tracing, scattering spectra, and electron cyclotron emission calculations has been conducted.
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ