New Power Records of Sub-Terahertz Gyrotron with Second-Harmonic Oscillation

Material type: 文書・図像類

Author: SAITO, Teruoほか

Publisher: プラズマ・核融合学会

Publication date: 2012-01

Material Format: Digital

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Note (General)：: High-power sub-terahertz pulse gyrotrons are under development in FIR FU for application to collective Thomson scattering (CTS) measurement on fusion ...

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Material Type: 文書・図像類
Title: New Power Records of Sub-Terahertz Gyrotron with Second-Harmonic Oscillation
Author/Editor: SAITO, Teruo
OGASAWARA, Shinya
YAMADA, Naoki
IKEUCHI, Shinji
TATEMATSU, Yoshinori
IKEDA, Ryosuke
OGAWA, Isamu
MANUILOV, Vladimir N.
Author Heading: SAITO, Teruo
OGASAWARA, Shinya
YAMADA, Naoki
IKEUCHI, Shinji
TATEMATSU, Yoshinori
IKEDA, Ryosuke
OGAWA, Isamu
MANUILOV, Vladimir N.
Publication, Distribution, etc.: プラズマ・核融合学会
Publication Date: 2012-01
Publication Date (W3CDTF): 2012-01
Periodical title: Plasma and Fusion Research
No. or year of volume/issue: 7
Volume: 7
Pages: 1206003-
Text Language Code: eng
Subject Heading: terahertz gyrotron
second-harmonic oscillation
single-mode oscillation
mode competition
collective Thomson scattering
Target Audience: 一般
Note (General): High-power sub-terahertz pulse gyrotrons are under development in FIR FU for application to collective Thomson scattering (CTS) measurement on fusion plasmas, especially on high-density plasmas such as those produced in LHD. Recently, we achieved a new power record of 62 kW at approximately 388 GHz with secondharmonic (SH) oscillation. Following this result, we modified the electron gun of the gyrotron to couple the electron beam more strongly to another oscillation mode that has a peak coupling coefficient two times as large as that of the 62 kWmode. Oscillation tests with the new mode attained higher power of 83 kWat about 389 GHz. These results constitute new second-harmonic-oscillation power records for sub-terahertz gyrotrons.
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