2013 Fiscal Year Final Research Report
Development of multi-channel and multi-wavelength detection for observing 2D turbulence dynamics
| Project/Area Number |
23246162
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear fusion studies
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
INAGAKI Shigeru 九州大学, 応用力学研究所, 准教授 (60300729)
IDO Takeshi 核融合科学研究所, 准教授 (50332185)
SHIMIZU Akihiro 核融合科学研究所, 助教 (00390633)
NAGASHIMA Yoshihiko 九州大学, 応用力学研究所, 准教授 (90390632)
YAMADA Takuma 九州大学, 基幹教育院, 准教授 (90437773)
NAKANO Haruhisa 核融合科学研究所, 助教 (90442524)
OHSHIMA Shinsuke 京都大学, エネルギー理工学研究所, 助教 (00469610)
ZUSHI Hideki 九州大学, 応用力学研究所, 教授 (20127096)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | プラズマ / 乱流 / トモグラフィー / 多スケール結合 / X線 / 紫外線 / オプティカルフィードスルー / 蛍光ガラス |
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| Research Abstract |
Aiming at advanced understanding of plasma turbulence and transport, based on multi-scale nonlinear couplings between fluctuations and structures, super multi-channel and multi-wavelength detection has been developed for tomographic system. A 132 ch. prototype system is constructed in a linear cylindrical device, termed PANTA, to be able to detect visible lights with covering the whole plasma cross-section in four azimuthal angles separated by 45 degree apart. The whole region of plasma has been able to be successfully measured, including its dynamics, with visible lights. Two-dimensional image of plasma light emission was reconstructed, and the fluctuation component was detected with sufficient signal-to-noise ratio. As for X-ray and ultra-violet light, the initial development of the methods using scintillator and flourescence glass has been successfully accomplished. Tomography algorithms have been explored and the major principle of the proposed method have been proved.
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[Journal Article] On turbulence-correlation analysis based on correlation reflectometry2013
Author(s)
N.V. Teplova Kosolapova, K. Itoh, S.-I. Itoh, E.Z. Gusakov, S. Heuraux, S.Inagaki, M. Sasaki, T. Kobayashi, Y. Nagashima, S. Oldenburger, A. Fujisawa
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Journal Title
Phys. Scr.
Volume: 87
Pages: 045502
Peer Reviewed
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[Journal Article] Spatiotemporal Structures of Edge Limit-Cycle Oscillation before L-to-H Transition in the JFT-2M Tokamak2013
Author(s)
T. Kobayashi, K. Itoh, T. Ido, K. Kamiya, S.-I. Itoh, Y. Miura, Y. Nagashima, A. Fujisawa, S. Inagaki, K. Ida, and K. Hoshino
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Journal Title
Phys. Rev. Lett.
Volume: 111
Pages: 035002
Peer Reviewed
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[Journal Article] Spatial structures and interaction of multiple sheared flow populations in tokamak edge turbulence2013
Author(s)
K.J. Zhao, J.Q. Dong, L.W. Yan, P.H. Diamond, J. Cheng, W.Y. Hong, Z.H. Huang, M. Xu, G.R. Tynan, K. Itoh, S.-I. Itoh, A. Fujisawa, Y. Nagashima, S. Inagaki, Z.X. Wang, L. Wei, Q. Li, X.Q. Ji, Y. Huang, Yi. Liu, J. Zhou, X.M. Song, Q.W. Yang, X.T. Ding, X.R. Duan and the HL-2A Team
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Journal Title
Nucl. Fusion
Volume: 53
Pages: 083011
Peer Reviewed
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[Journal Article] Sawtooth-triggered limit-cycle oscillations and I-phase in the HL-2A tokamak2013
Author(s)
K.J. Zhao, J. Cheng, P.H. Diamond, J.Q. Dong, L.W. Yan, W.Y. Hong, M. Xu, G. Tynan, K. Miki, Z.H. Huang, K. Itoh, S.-I. Itoh, A. Fujisawa, Y. Nagashima, S. Inagaki, Z.X.Wang, L. Wei, X.M. Song, G.J. Lei, Q. Li, X.Q. Ji, Yi Liu, Q.W. Yang
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Journal Title
Nucl. Fusion
Volume: 53
Pages: 123015
Peer Reviewed
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[Journal Article] Observations of intermittent structures in the periphery of cylindrical linear plasma in PANTA2012
Author(s)
Noriko Ohyama, Akihide Fujisawa, Shigeru Inagaki, Yoshihiko Nagashima, Stella Oldenburger, Tatsuya Kobayashi, Katsuyuki Kawashima, Yuuki Tobimatsu, Tetsuo Yamashita, Soutaro Yamada, Hiroyuki Arakawa, Takuma Yamada, Masatoshi Yagi, Naohiro Kasuya, Makoto Sasaki, Sanae-I. Itoh and Kimitaka Itoh
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Journal Title
Plasma and Fusion Research
Volume: 7
Pages: 1201025
Peer Reviewed
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[Journal Article] On influences of long-range fluctuations on transport in Large Helical Device plasmas2012
Author(s)
K Itoh, S.-I Itoh, S Inagaki, T Kobayashi, A Fujisawa, Y Nagashima, S Oldenburger, K Ida, T Tokuzawa, Y Nagayama, K Kawahata, H Yamada and the LHD Experiment Group
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Journal Title
Plasma Phys. Control. Fusion
Volume: 54
Pages: 095016
Peer Reviewed
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[Journal Article] Non-Gaussian properties of global momentum and particle fluxes in a cylindrical laboratory plasma2011
Author(s)
Y. Nagashima, S.-I. Itoh, S. Inagaki, H. Arakawa, N. Kasuya, A. Fujisawa, K. Kamataki, T. Yamada, S. Shinohara, S. Oldenburger, M. Yagi, Y. Takase, P. H. Diamond, and K. Itoh
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Journal Title
Physics of Plasmas
Volume: 18
Pages: 070701
Peer Reviewed
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[Journal Article] Dynamic interaction between a solitary drift wave structure and zonal flows in a linear cylindrical device2011
Author(s)
H Arakawa, T Kobayashi, S Inagaki, N Kasuya, S Oldenburger, Y Nagashima, T Yamada, M Yagi, A Fujisawa, K Itoh, S.-I Itoh
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Journal Title
Plasma Phys. Control. Fusion
Volume: 53
Pages: 115009
Peer Reviewed
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[Journal Article] Observation of Long-Distance Radial Correlation in Toroidal Plasma Turbulence2011
Author(s)
S. Inagaki, T. Tokuzawa, K. Itoh, K. Ida, S.-I. Itoh, N. Tamura, S. Sakakibara, N. Kasuya, A. Fujisawa, S. Kubo, T. Shimozuma, T. Ido, S. Nishimura, H. Arakawa, T. Kobayashi, K. Tanaka, Y. Nagayama, K.Kawahata, S. Sudo, H. Yamada, and A. Komori
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Journal Title
Phys. Rev. Lett.
Volume: 107
Pages: 115001
Peer Reviewed
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