Elucidation of the effect of electron beam quality on the gyro-device oscillation and realization of high oscillation efficiency
Project/Area Number |
25420327
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Electron device/Electronic equipment
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Research Institution | University of Fukui |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
YAMAGUCHI Yuusuke 福井大学, 遠赤外領域開発研究センター, 特命助教 (10466675)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
Keywords | ジャイロトロン / 電子ビーム / 速度・位置分布 / 軸ずれ / 発振効率改善 / ジャイロBWO |
Outline of Final Research Achievements |
For the oscillation of gyro-devices, the effect of position and velocity spreads of the electrons injecting into the resonator was theoretically and experimentally investigated. Reduction of the electron velocity spread was realized by a new electron gun designed optimally to the gyro-device. Axis deviation of the gyro-device against the magnetic coil axis leads to increase the position spread of the electrons. Improvement of the electron gun and fine tuning of the installation position of the gyro-device increase the oscillation efficiency in expriments. This result was consistent with the theoretical calculation. It was found the effect of the position spread is larger on the oscillation efficiency for a well-designed gyro-device.
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Report
(4 results)
Research Products
(63 results)
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[Journal Article] High-power pulsed gyrotron for 300 GHz-band collective Thomson scattering diagnostics in the Large Helical Device2015
Author(s)
Yuusuke Yamaguchi, Teruo Saito, Yoshinori Tatematsu, Shinji Ikeuchi, Vladimir N. Manuilov, Jun Kasa, Masaki Kotera, Toshitaka Idehara, Shin Kubo, Takashi Shimozuma, Kenji Tanaka and Masaki Nishiura
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Journal Title
Nuclear Fusion
Volume: 55
Issue: 1
Pages: 013002-013002
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Development of second harmonic gyrotrons, Gyrotron FU CW GII and Gyrotron FU CW GIII, equipped with internal mode converters2014
Author(s)
Y.Tatematsu, Y.Yamaguchi, T.Idehara, T.Kawase, R.Ichioka, I.Ogawa, T.Saito, T.Fujiwara
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Journal Title
Journal of Infrared, Millimeter, and Terahertz Waves
Volume: 35
Issue: 2
Pages: 169-178
DOI
Related Report
Peer Reviewed
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[Journal Article] Experiment for Over 200 kW Oscillation of a 295 GHz Pulse Gyrotron2013
Author(s)
Y. Yamaguchi, T. Saito, Y. Tatematsu, S. Ikeuchi, J. Kasa, M. Kotera, I. Ogawa, T. Idehara, S. Kubo, T. Shimozuma, M. Nishiura and K. Tanaka
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Journal Title
Plasma and Fusion Research
Volume: 8
Issue: 0
Pages: 1205165-1205165
DOI
NAID
ISSN
1880-6821
Related Report
Peer Reviewed
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[Presentation] サブテラヘルツ帯ジャイロトロン実験における電子ビーム特性の評価2014
Author(s)
山口裕資, 立松芳典, 笠純, 寺島弘貴, 市岡亮一、桑原大貴、小寺正輝, 松井俊英、田邉優文、近藤智哉、軍司海, Vladimir N. Manuilov, 齊藤輝雄
Organizer
Plasma Conference 2014
Place of Presentation
新潟市朱鷺メッセ
Year and Date
2014-11-18 – 2014-11-21
Related Report
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[Presentation] Applications of high frequency gyrotrons to high power THz spectroscopy2014
Author(s)
T.Idehara, Y.Tatematsu, S.Mitsudo, I.Ogawa, T.Saito, K. Ueda, Y. Matsuki, T. Fujiwara, A. Miyazaki, T. Suehara, T. Yamazaki
Organizer
9th International Workshop on Strong Microwaves and Terahertz Waves: Sources and Applications
Place of Presentation
Nizhny Novgorod - Perm, Russia
Year and Date
2014-07-24 – 2014-07-30
Related Report
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[Presentation] Development of Gyrotron FU CW G-series2014
Author(s)
Y.Tatematsu, Y.Yamaguchi, T.Kawase, R.Ichioka, T.Muratsubaki, S.Masuta, M. Miwa, T.Idehara, I.Ogawa, T.Kanemaki, T.Saito
Organizer
The 5th International Workshop on Far Infrared technologies
Place of Presentation
University of Fukui, Japan
Related Report
Invited
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[Presentation] Development of a 400 GHz band frequency-tunable second-harmonic gyro-BWO2014
Author(s)
Y.Yamaguchi, Y.Tatematsu, T.Saito, T.Kuwahara, M.Kotera, J.Kasa, T.Kanemaki, I.Ogawa, T.Idehara, O.Dumbrajs
Organizer
The 5th International Workshop on Far Infrared technologies
Place of Presentation
University of Fukui, Japan
Related Report
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[Presentation] Power improvement on Gyrotron FU CW GIII2013
Author(s)
Y.Tatematsu, T.Kawase, R.Ichioka, Y.Yamaguchi, I.Ogawa, R.Ikeda, T.Idehara, T.Saito
Organizer
38th International Conference on Infrared, Millimeter and Terahertz Waves
Place of Presentation
Congress Center Mainz (Rheingoldhalle) , Mainz, Germany
Related Report
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[Presentation] Experimental verification of a self-consistent calculation for continuous frequency-tune with a 400 GHz band second harmonic gyro-BWO2013
Author(s)
Y.Yamaguchi, Y.Tatematsu, T.Saito, T.Kuwahara, R.Ikeda, I.Ogawa, T.Idehara, O.Dumbrajs
Organizer
38th International Conference on Infrared, Millimeter and Terahertz Waves
Place of Presentation
Congress Center Mainz (Rheingoldhalle) , Mainz, Germany
Related Report
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