New approach of investigation about fast ion physics by using a newly developed collective Thomson scattering
Project/Area Number |
24360385
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Nuclear fusion studies
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Research Institution | National Institute for Fusion Science |
Principal Investigator |
Tanaka Kenji 核融合科学研究所, ヘリカル研究部, 准教授 (50260047)
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Co-Investigator(Kenkyū-buntansha) |
KUBO SHIN 核融合科学研究所, ヘリカル研究部, 教授 (80170025)
SHIMOZUMA TAKASHI 核融合科学研究所, ヘリカル研究部, 教授 (80270487)
NISHIURA MASAKI 東京大学, 大学院新領域創成科学研究科, 准教授 (60360616)
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Co-Investigator(Renkei-kenkyūsha) |
SAITO TERUO 福井大学, 遠赤外領域開発研究センター, 教授 (80143163)
TATEMATSU YOSHINORI 福井大学, 遠赤外領域開発研究センター, 准教授 (50261756)
MURAKAMI SADAYOSHI 京都大学, 工学系研究科, 教授 (40249967)
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Project Period (FY) |
2012-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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Keywords | 磁場閉じ込め核融合 / マイクロ波 / 協同散乱 / トムソン散乱 / 高速イオン / ジャイラトロン / 核融合 / プラズマ / ヘリカル / 協同トムソン散乱 / 大型ヘリカル装置 / トムソン協同散乱 / 磁場閉じ込めプラズマ |
Outline of Final Research Achievements |
This project aims to investigate the fast ion physics in magnetically confined plasma. For this purpose, we developed the microwave collective Thomson scattering (CTS) by using a high power gyrotron. CTS can measure both thermalized bulk ion components and non-thermalized fast ion components. Two detection systems were developed. One is a filter bank system with slow digitizer (100kHz sample for 80sec) to measure temporal evolution of CTS spectrum, the other is a fast digitizer system (10GHz sample for 80msec) to measure fine structure of CTS spectrum. Scattering geometry was optimized for the precise measurements in order to reduce stray radiation. Measured CTS spectrum was compared with theoretical model calculated by numerical code, then, qualitative agreements were obtained. From the measurements of bulk ion components by using a fast digitizer system, ion density ratio was measured from the modulated spectrum due to ion Bernstein waves.
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Report
(5 results)
Research Products
(37 results)
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[Journal Article] Improved notch filter for microwave plasma diagnostics in 70 GHz range2015
Author(s)
M. Nishiura, S. Kubo, K. Tanaka, S. Kobayashi, K. Okada, K. J. Okada, T. Nishimura, T. Mushiake, T.Shimozuma, T. Mutoh, T. Saito, Y. Tatematsu, and Y. Yamaguchi
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Journal Title
Journal of Instrumentation
Volume: C12014
Issue: 12
Pages: 1-6
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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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] Spectrum response and analysis of 77-GHz band collective Thomson scattering diagnostic for bulk and fast ions in LHD plasmas2014
Author(s)
M. Nishiura, S. Kubo, K. Tanaka, R. Seki, S. Ogasawara, T. Shimozuma, K. Okada, S. Kobayashi, T. Mutoh, K. Kawahata, T. Watari, LHD experiment group, T. Saito, Y. Tatematsu, S. B. Korsholm, M. Salewski
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Journal Title
Nuclear Fusion
Volume: 54
Issue: 2
Pages: 023006-023006
DOI
Related Report
Peer Reviewed
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[Journal Article] The effects of resonant magnetic perturbation on particle transport in LHD2013
Author(s)
K. Tanaka, M. Jakubowski, A. Dinklage, Y. Suzuki, M.Goto, T. Morisaki, S. Sakakibara, Y. Narushima, T. Akiyama, T. Tokuzawa, K. Kawahata, R. Yasuhara, I. Yamada, S. Masuzaki, M. Yoshinuma, K. Ida, L.N. Vyacheslavov, C.A. Michael, D. Mikkelsen, T. Evans
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Journal Title
Plasma and Fusion Research
Volume: 8
Issue: 0
Pages: 2402141-2402141
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Suppression of Spurious Mode Oscillation in Mega- watt 77 GHz Gyrotoron as a high quality probe beam source for the Collective Thomson Scattering in LHD2012
Author(s)
Ogasawara, S. Kubo, M. Nishiura, Y. Tatematsu, T. Saito, K. Tanaka, T. Shimozuma, Y.Yoshimura, H. Igami, H. Takahashi, et al.
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Journal Title
Review of Scientific Instruments
Volume: 83
Issue: 10
DOI
Related Report
Peer Reviewed
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[Journal Article] Identification of Spurious Modes of High-Power 77-GHz Gyrotron for Collective Thomson Scattering in LHD2012
Author(s)
S. Ogasawara, S. Kubo, M. Nishiura, Y. Tatematsu, T. Saito, K. Tanaka, T. Shimozuma, Y. Yoshimura, H. Igami, H. Takahashi, et al.
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Journal Title
Plasma and Fusion Research
Volume: 7
Issue: 0
Pages: 2405061-2405061
DOI
NAID
ISSN
1880-6821
Related Report
Peer Reviewed
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[Presentation] Application of high power and long pulse gyrotrons to LHD plasmas2014
Author(s)
S. Kubo, T. Shimozuma1, Y. Yoshimura, M. Nishiura, H. Igami, H. Takahashi, T. Ii, T. Mutoh, R. Minami, T. Kariya, T. Imai, K. Tanaka, Y. Tatematsu, T. Saito
Organizer
Strong Micorwaves and Terahertz Waves: Sources and Application
Place of Presentation
Nizhyni Novgorod,Russia
Year and Date
2014-07-24 – 2014-07-30
Related Report
Invited
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[Presentation] Collective Thomson scattering volume scan experiments using high power gyrotron in the LHD2014
Author(s)
S. Kubo, T. Shimozuma1, Y. Yoshimura, M. Nishiura, H. Igami, H. Takahashi, T. Ii, T. Mutoh, R. Minami, T. Kariya, T. Imai, K. Tanaka, Y. Tatematsu, T. Saito
Organizer
High Temperature Plasma Diagnostics 2014
Place of Presentation
Atlanta, USA
Year and Date
2014-06-01 – 2014-06-05
Related Report
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[Presentation] Characteristics of microturbuelnce and its impact on particle and momentum transport in LHD2013
Author(s)
K. Tanaka, K. Nagaoka, D.R. Mikkelsen, I. Yamada, R. Yasuhara, M. Yoshinuma, K. Ida, T. Tokuzawa, T. Akiyama, M.Yokoyama, L.N. Vyacheslavov, C.A. Michae
Organizer
14th International Workshop on H-mode Physics and Transport Barriers
Place of Presentation
Kyushu University, Fukuoka, Japan
Related Report
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[Presentation] Response of turbulence associated with the change of density profiles in LHD heliotron and JT-60U tokamak2013
Author(s)
K. Tanaka , H. Takenaga, K. Muraoka, M. Yoshida, C. Michael, L. N. Vyacheslavov, D.R. Mikkelsen , M. Yokoyama , N. Oyama , H. Urano , Y. Kamada , T. Tokuzawa , T. Akiyama , K. Kawahata , M. Yoshinuma, K. Ida, I. Yamada, K. Narihara
Organizer
23rd International Toki Conference (ITC-23) on Large-scale Simulation and Fusion Science
Place of Presentation
Ceratopia Toki, Toki-city, Gifu, JAPAN
Related Report
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[Presentation] Improvement of 3D multi-ray-tracing Code ”LHDGauss2013
Author(s)
S. Kubo, H. Igami, T. Shimozuma, H. Takahashi, Y. Yoshimura, M. Nishiura, R. Makino, R. Seki, M. Yokoyama, C. Suzuki, Y. Suzuki, K. Ida, S. Ogasawara, and T. Mutoh
Organizer
23rd International Toki Conference (ITC-23) on Large-scale Simulation and Fusion Science
Place of Presentation
Ceratopia Toki, Toki-city, Gifu, JAPAN
Related Report
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[Presentation] Installation of a 154 GHz Mega-Watt Gyrotron and Its Contribution to the Extension of Plasma Parameter Regime in LHD2013
Author(s)
T. Shimozumaa, H. Takahashia, S. Itoa, S. Kuboa, Y. Yoshimuraa, H. Igamia, M. Nishiuraa, S. Ogasawarab, R. Makinob, Y. Mizunoa, K. Okadaa, S. Kobayashia, T. Mutoha, R. Minamic, T. Kariyac and T. Imai
Organizer
The 38th International Conference on Infrared, Millimeter and Terahertz Waves IRMMW-THz 2013
Place of Presentation
Mainz, Germany
Related Report
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[Presentation] Upgrade of Mega-Watt ECRH System and Its Contribution to Performance Improvement of LHD Plasmas2013
Author(s)
T. Shimozum, H. Takahashi, S. Kubo, Y. Yoshimura, H. Igami, M. Nishiura, S. Ogasawara, R. Makino, S. Ito, Y. Mizuno, K. Okada, S. Kobayashi, T. Mutoh, R. Minami, T. Kariya and T. Imai
Organizer
US-EU-JPN RF Heating Technology Workshop "Workshop on RF Heating Technology of Fusion Plasmas 2013"
Place of Presentation
Speyer, Germany
Related Report
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[Presentation] Experimental and Ray-Tracing Study of the Third Harmonic Electron Cyclotron Resonance Heating in LHD2013
Author(s)
T. Shimozuma, H. Takahashi, S. Kubo, Y. Yoshimura, H. Igami, M. Nishiuraa, S. Ogasawara, R. Makino, M. Osakabe, K. Nagasaki, N.B. Marushchenko, Y. Turkin and T. Mutoh
Organizer
23rd International Toki Conference (ITC-23) on Large-scale Simulation and Fusion Science
Place of Presentation
Ceratopia Toki, Toki-city, Gifu, JAPAN
Related Report
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