Evaluation of Measurement Signal of Heavy Ion Beam Probe of Energetic-Particle Driven Geodesic Acoustic Modes

• SASAKI Makoto

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• ITOH Kimitaka

  Research Center for Plasma Turbulence, Kyushu University Institute of Science and Technology Research, Chubu University

• IDO Takeshi

  National Institute for Fusion Science

• SHIMIZU Akihiro

  National Institute for Fusion Science

• KOBAYASHI Tatsuya

  National Institute for Fusion Science

• ARAKAWA Hiroyuki

  Teikyo University

• KASUYA Naohiro

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• FUJISAWA Akihide

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• ITOH Sanae-I.

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

抄録

In order to observe spatial profiles of energetic particle driven modes, measurement signal of Heavy Ion Beam Probe (HIBP) is formulated theoretically, focusing on effects of the fast ion density fluctuation and attenuation of the injected beam (line-integral effect). Obtained formula is applied to the density fluctuation measurement of energetic-particle driven geodesic acoustic modes (EGAMs). Intensity of the fluctuation obtained by the HIBP can be up-down asymmetric in the poloidal cross-section due to the effect of the fast ion density fluctuation, when the electron loss cross-section of HIBP due to fast ions is comparable to that due to electrons. A possibility to measure the fast ion density by HIBP is discussed, and the experimental guideline for the specification of the resonance which drives the EGAM is presented.

収録刊行物

• Plasma and Fusion Research

  Plasma and Fusion Research 13 (0), 3403040-3403040, 2018-05-22

  一般社団法人 プラズマ・核融合学会

キーワード

• EGAM
• spatial structure
• HIBP
• EP driven mode

詳細情報

• CRID: 1390282763026944768
• NII論文ID: 130007430465
• NII書誌ID: AA12346675
• DOI: 10.1585/pfr.13.3403040
• ISSN: 18806821
• HANDLE: 10655/00013286
• Web Site: https://nifs-repository.repo.nii.ac.jp/records/11356
• Web Site: https://www.jstage.jst.go.jp/article/pfr/13/0/13_3403040/_pdf
• 本文言語コード: en
• データソース種別:
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  • IRDB
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