Observation of ion temperature gradient mode and evaluation of fluctuation-driven heat flux in a linear magnetized plasma
Project/Area Number |
23360414
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Nuclear fusion studies
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Research Institution | Kyushu University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
KASUYA Naohiro 九州大学, 応用力学研究所, 准教授 (20390635)
SASAKI Makoto 九州大学, 応用力学研究所, 助教 (70575919)
EZUMI Naomichi 長野工業高等専門学校, 電子制御工学科, 准教授 (20321432)
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Project Period (FY) |
2011-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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Keywords | プラズマ乱流 / イオン温度勾配不安定性 / 温度揺動 / 熱輸送 / 輸送 / 乱流 / 計測 / プラズマ核融合 / プラズマ科学 / プラズマ / 乱流輸送 / 温度勾配不安定性 / イオン温度揺動 / プローブ |
Outline of Final Research Achievements |
In fusion plasmas, radial ion heat transport driven by ion temperature gradient (ITG) instability is considered to be dominant. Here we have observed ITG-like fluctuations and developed analysis method for evaluating a fluctuation-driven heat transport in the linear plasma device. The main results are the following: (1) We calculated the linear growth rate of ITG modes by a three-field fluid model and found unstable domain. Then we have succeeded to observe a fluctuation propagating in the ion diamagnetic drift direction, which co-exists with drift waves propagating in the electron diamagnetic drift direction. (2) We developed a conditional sampling method and succeeded to extract the ion temperature fluctuation amplitude synchronized with the floating potential fluctuation. In addition, we improved the method and observed the phase difference between temperature and potential fluctuations, which allows us to evaluate the fluctuation-driven heat flux.
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Report
(5 results)
Research Products
(68 results)
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[Journal Article] Evaluation of Non-Linear Mode Coupling During End-Plate Biasing Experiment in PANTA2015
Author(s)
F. Kin, T. Yamada, S. Inagaki, H. Arakawa, Y. Nagashima, N. Kasuya, A. Fujisawa, K. Nakanishi, H. Kono, T. Mizokami, M. Sasaki, M. Lesur, Y. Kosuga, K. Itoh and S.-I. Itoh
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Journal Title
Plasma and Fusion Research
Volume: 10
Issue: 0
Pages: 3401043-3401043
DOI
NAID
ISSN
1880-6821
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Study of Non-linear Coupling of Fluctuations at Long Distance in LHD2014
Author(s)
S. Inagaki, T. Tokuzawa, T. Kobayashi, S.-I. Itoh, K. Itoh, K. Ida, A. Fujisawa, S. Kubo, T. Shimozuma, N. Tamura, N. Kasuya, H. Tsuchiya, Y. Nagayama and the LHD Experiment Group,
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Journal Title
Nuclear Fusion
Volume: 54
Issue: 11
Pages: 1140141-6
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] End plate biasing experiments in linear magnetized plasmas2014
Author(s)
T. Yamada, S. Inagaki, T. Kobayashi, Y. Nagashima, T. Mitsuzono, Y. Miwa, K. Nakanishi, H. Fujino, M. Sasaki, N. Kasuya, M. Lesur, Y. Kosuga, A. Fujisawa, S.-I. Itoh, K. Itoh
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Journal Title
Nuclear Fusion
Volume: 54
Issue: 11
Pages: 1140101-5
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Identification of Quasi-Periodic Nonlinear Waveforms in Turbulent Plasmas2014
Author(s)
S. Inagaki, Y. Miwa, T. Kobayashi, T. Yamada, Y. Nagashima, T. Mitsuzono, H. Fujino, M. Sasaki, N. Kasuya, M. Lesur, Y. Kosuga, A. Fujisawa, S.-I. Itoh, K. Itoh
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Journal Title
Plasma and Fusion Research
Volume: 9
Issue: 0
Pages: 1201016-1201016
DOI
NAID
ISSN
1880-6821
Related Report
Peer Reviewed / Open Access
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[Journal Article] Higher Harmonics in a Perturbative Transport Experiment2013
Author(s)
S. Inagaki, S.-I. Itoh, K. Itoh, N.. Kasuya, T. Kobayashi, A. Fujisawa, T. Tokuzawa, K. Ida, S. Kubo, T. Shimozuma, et. al.
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Journal Title
Plasma and Fusion Research
Volume: 8
Issue: 0
Pages: 1202173-1202173
DOI
NAID
ISSN
1880-6821
Related Report
Peer Reviewed
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[Journal Article] Evaluation of Excitation Conditions of ITG Modes in the PANTA2013
Author(s)
Y. Miwa, N. Kasuya, M. Sasaki, S. Inagaki, K. Itoh, M. Yagi, A. Fujisawa, Y. Nagashima, M. Lesur, T. Kobayashi, S. Yamada, T. Yamashita, S. Otsubo, S. Kakigawa, T. Mitsuzono, H. Fujino, and S. -I. Itoh
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Journal Title
Plasma and Fusion Research
Volume: 8
Issue: 0
Pages: 2403133-2403133
DOI
NAID
ISSN
1880-6821
Related Report
Peer Reviewed
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[Presentation] プラズマ計測におけるマイクロ波周波数コムの活用2014
Author(s)
稲垣滋、徳澤季彦, 伊藤公孝, Maxime Lesur, 山田琢磨, 永島芳彦,荒川弘之, 藤澤彰英,糟谷直宏, 佐々木真,小菅佑輔, 伊藤早苗
Organizer
plasma conference 2014
Place of Presentation
朱鷺メッセ
Year and Date
2014-11-18 – 2014-11-21
Related Report
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[Presentation] Evaluation of Non-Linear Mode Coupling During End-Plate Biasing Experiment in PANTA2014
Author(s)
F. Kin, T. Yamada, S. Inagaki, H. Arakawa, Y. Nagashima, N. Kasuya, A. Fujisawa, K. Nakanishi, H. Kono, T. Mizokami, M. Sasaki, M. Lesur, Y. Kosuga, K. Itoh and S.-I. Itoh
Organizer
24th International TOKI Conference
Place of Presentation
Toki, Japan
Year and Date
2014-11-04 – 2014-11-07
Related Report
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[Presentation] Dynamic Method to Study Turbulence and Turbulence Transport2014
Author(s)
S. Inagaki, K. Ida, S.-I. Itoh, K. Itoh, T. Tokuzawa, N. Tamura, S. Kubo, T. Shimozuma, K. Tanaka, H. Tsuchiya, Y. Nagayama, T. Kobayashi, N. Kasuya, M. Sasaki, A. Fujisawa, Y. Kosuga, K. Kamiya, H. Yamada, A. Komori and LHD experiment group
Organizer
IAEA 25th Fusion Energy Conference
Place of Presentation
Saint Petersburg, Russia
Year and Date
2014-10-13 – 2014-10-18
Related Report
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[Presentation] Simultaneous Multi-point Measurement of Multi-Scale Fluctuations in LHD2014
Author(s)
S. Inagaki, T. Tokuzawa, K. Ida, K. Itoh, N. Tamura, T. Shimozuma, S. Kubo, T. Kobayashi, A. Fujisawa, S.-I. Itoh, H. Yamada and LHD Experiment Group
Organizer
4th Asia Pacific Transport Working Group International Conference
Place of Presentation
Kasuga, Japan
Year and Date
2014-06-10 – 2014-06-13
Related Report
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[Presentation] Streamer and Nonlinear Coupling with Turbulence2014
Author(s)
T. Yamada, S. Inagaki, T. Kobayashi, Y. Nagashima, Y. Miwa, K. Nakanishi, M. Sasaki, N. Kasuya, M. Lesur, Y. Kosuga, A. Fujisawa, S.-I. Itoh, K. Itoh
Organizer
4th Asia Pacific Transport Working Group International Conference
Place of Presentation
Kasuga, Japan
Year and Date
2014-06-10 – 2014-06-13
Related Report
Invited
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[Presentation] End plate biasing experiments in PANTA2014
Author(s)
T. Yamada, S. Inagaki, T. Kobayashi, Y. Nagashima, T. Mitsuzono, Y. Miwa, K. Nakanishi, M. Sasaki, N. Kasuya, M. Lesur, Y. Kosuga, A. Fujisawa, S.-I. Itoh, K. Itoh
Organizer
69th Annual Meeting of the Physical Society of Japan
Place of Presentation
Kanagawa, Japan
Related Report
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[Presentation] Turbulence Driven Transport in PANTA2014
Author(s)
S. Inagaki, T. Kobayashi, Y. Miwa, T. Mitsuzono, K. Nakanishi, T. Yamada, Y. Nagashima, N. Kasuya, M. Sasaki, Y. Kosuga, M. Lesur, A. Fujisawa, S.-I. Itoh and K. Itoh
Organizer
69th Annual Meeting of the Physical Society of Japan
Place of Presentation
Kanagawa, Japan
Related Report
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[Presentation] Excitation and identification of ion temperature gradient modes in the linear magnetized plasma device PANTA2014
Author(s)
Y. Miwa, N. Kasuya, S. Inagaki, T. Kobayashi, T. Mitsuzono, K. Nakanishi, T. Yamada, Y. Nagashima, A. Fujisawa, M. Sasaki, Y. Kosuga, M. Lesur, K. Itoh and S.-I. Itoh
Organizer
69th Annual Meeting of the Physical Society of Japan
Place of Presentation
Kanagawa, Japan
Related Report
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[Presentation] Phase diagram of plasma turbulence in the PANTA2014
Author(s)
T. Kobayashi, S. Inagaki, M. Sasaki, T. Yamada, Y. Nagashima, Y. Kosuga, M. Yagi, N. Kasuya, A. Fujisawa, S.-I. Itoh, and K.Itoh
Organizer
69th Annual Meeting of the Physical Society of Japan
Place of Presentation
Kanagawa, Japan
Related Report
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[Presentation] Formation condition of streamer structures in PANTA2013
Author(s)
T. Yamada, S. Inagaki, T. Kobayashi, Y. Nagashima, T. Mitsuzono, Y. Miwa, H. Fujino, M. Sasaki, N. Kasuya, M. Lesur, Y. Kosuga, A. Fujisawa, S.-I. Itoh, and K. Itoh
Organizer
日本物理学会2013秋季大会
Place of Presentation
徳島大学
Related Report
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[Presentation] PANTAにおけるストリーマー構造の形成条件2013
Author(s)
T. Yamada, S. Inagaki, T. Kobayashi, Y. Nagashima, M. Sasaki, N. Kasuya, A. Fujisawa, S.-I. Itoh, and K. Itoh
Organizer
日本物理学会2013秋季大会
Place of Presentation
徳島大学
Related Report
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[Presentation] Flow Structure Formation and Control in a Cylindrical Plasma2013
Author(s)
T. Mitsuzono, S. Inagaki, T. Kobayashi, Y. Nagashima, Y. Miwa, N. Kasuya, M. Sasaki, M. Lesur, Y. Kosuga, A. Fujisawa, S.-I. Itoh, K. Itoh
Organizer
14th International Workshop on H-mode Physics and Transport Barriers
Place of Presentation
Fukuoka, Japan
Related Report
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[Presentation] Formation of streamer structures in linear magnetized plasmas2013
Author(s)
T. Yamada, S. Inagaki, T. Kobayashi, Y. Nagashima, T. Mitsuzono, Y. Miwa, H. Fujino, M. Sasaki, N. Kasuya, M. Lesur, Y. Kosuga, A. Fujisawa, S.-I. Itoh, K. Itoh
Organizer
14th International Workshop on H-mode Physics and Transport Barriers
Place of Presentation
Fukuoka, Japan
Related Report
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[Presentation] Estimation of 2D cross-sectional structure of fluctuation2013
Author(s)
T. Yamada, S. Inagaki, T. Kobayashi, Y. Nagashima, T. Mitsuzono, Y. Miwa, H. Fujino, M. Sasaki, N. Kasuya, M. Lesur, Y. Kosuga, A. Fujisawa, S.-I. Itoh, and K. Itoh
Organizer
30th Annual Meeting of the Japan Society of Plasma Science and Nuclear Fusion Research
Place of Presentation
Tokyo, Japan
Related Report
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