Performance Test of CW 300 GHz Gyrotron FU CW I

Material type: 文書・図像類

Author: SAITO, Tほか

Publisher: Springer Verlag

Publication date: 2007-12

Material Format: Digital

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Note (General)：: A 300 GHz CWgyrotron FU CWI has been developed and installed in the Research Center for Development of Far-Infrared Region, University of Fukui as a p...

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Material Type: 文書・図像類
Title: Performance Test of CW 300 GHz Gyrotron FU CW I
Author/Editor: SAITO, T
NAKANO, T
HOSHIZUKI, H
SAKAI, K
TATEMATSU, Y
MITSUDO, S
OGAWA, I
IDEHARA, T
ZAPEVALOV, V.E
Author Heading: SAITO, T
NAKANO, T
HOSHIZUKI, H
SAKAI, K
TATEMATSU, Y
MITSUDO, S
OGAWA, I
IDEHARA, T
ZAPEVALOV, V.E
Publication, Distribution, etc.: Springer Verlag
Publication Date: 2007-12
Publication Date (W3CDTF): 2007-12
Periodical title: International journal of infrared and millimeter waves
No. or year of volume/issue: 28 12
Volume: 28
Issue: 12
Pages: 1063-1078
Text Language Code: eng
Subject Heading: FU CWI
Radiation pattern
Multi-mode oscillation
Target Audience: 一般
Note (General): A 300 GHz CWgyrotron FU CWI has been developed and installed in the Research Center for Development of Far-Infrared Region, University of Fukui as a power source of a high frequency material processing system. Its performance was tested and the maximum power of 1.75 kW/ CWhas been attained at the beam voltage of 15 kVand the beam current of 1A. The maximumwindow power efficiency of 15.5%has been obtained at the cathode voltage slightly lower than 15 kV. This gyrotron is designed to deliver a Gaussian beam after mode conversion from the oscillation mode TE_22,8 in the cavity with a complex of an internal radiator and beam shaping mirrors. The detailed measurement with an infrared camera has confirmed that a Gaussian beam is radiated when the magnetic field strength B_c at the cavity is adjusted at a proper value. However, within a range of B_c, the output power is emerged into multiple directions, which suggests simultaneous oscillation of competing cavity modes.
Access Restrictions: 限定公開
Related Material (DOI): 10.1007/s10762-007-9291-z
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