Relationship among frequency, temperature of the cooling water and beam current in submillimeter wave gyrotron FU-IV

Material type: 文書・図像類

Author: HORI, Toshihiroほか

Publisher: American Institute of Physics

Publication date: 2005-01

Material Format: Digital

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Note (General)：: The frequency characteristics of the gyrotron FU-IV in free running mode are examined precisely using heterodyne mixing technique. First, the frequenc...

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Material Type: 文書・図像類
Title: Relationship among frequency, temperature of the cooling water and beam current in submillimeter wave gyrotron FU-IV
Author/Editor: HORI, Toshihiro
IDEHARA, Toshitaka
SASAGAWA, Hiroyuki
KIMURA, Atsushi
OGAWA, Isamu
MITSUDO, Seitaro
Author Heading: HORI, Toshihiro
IDEHARA, Toshitaka
SASAGAWA, Hiroyuki
KIMURA, Atsushi
OGAWA, Isamu
MITSUDO, Seitaro
Publication, Distribution, etc.: American Institute of Physics
Publication Date: 2005-01
Publication Date (W3CDTF): 2005-01
Periodical title: Review of Scientific Instruments
No. or year of volume/issue: 76 2
Volume: 76
Issue: 2
Pages: 023502-1-023502-6
Text Language Code: eng
Target Audience: 一般
Note (General): The frequency characteristics of the gyrotron FU-IV in free running mode are examined precisely using heterodyne mixing technique. First, the frequency characteristics are measured and the short-term spectral bandwidths and the drifts of the center frequency are found to be less than 10 kHz full width at half maximum and about 10 MHz during 20 min, respectively. Next, an effective water-cooling system reduced the drifts of the center frequency within a range of several MHz. Then, the frequency, the cooling-water temperature, the beam current and the output power are monitored simultaneously to examine the relationship among these parameters. The results indicate that the beam current drift correlate with the frequency drift due to frequency pulling effect as well as the thermal expansion and contraction of the resonant cavity.
Access Restrictions: 限定公開
Rights (production): 〓 2005 American Institute of Physics
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