MHD Equilibrium Reconstruction Using the Visible Light Tomographic Method with Laplacian Eigenfunction
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- SUZUKI Kosuke
- Kyoto University
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- MURAKAMI Sadayoshi
- Kyoto University
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- OHDACHI Satoshi
- National Institute for Fusion Science
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- IDEI Hiroshi
- The Research Institute for Applied Mechanics, Kyushu University
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- KURODA Kengoh
- The Research Institute for Applied Mechanics, Kyushu University
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- IKEZOE Ryuya
- The Research Institute for Applied Mechanics, Kyushu University
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- ONCHI Takumi
- The Research Institute for Applied Mechanics, Kyushu University
説明
<p>A tomographic method using tangential visible light is proposed for MHD equilibrium reconstruction via two processes. The first process is a tomographic method to estimate the last-closed-flux-surface (LCFS) in two-dimensional poloidal cross-section using a single tangential camera image. Applying the Laplacian eigenfunction series expansion and L1 regularization, we can reconstruct the LCFS from relatively sparse and noisy observations. The second method is a free-boundary tokamak equilibrium calculation using the TASK/EQU code, in which we use the estimated plasma surface information as the constraints for the equilibrium calculation. As a result, we develop a new method for identifying equilibrium states using visible light information.</p>
収録刊行物
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- Plasma and Fusion Research
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Plasma and Fusion Research 16 (0), 2402090-2402090, 2021-07-05
一般社団法人 プラズマ・核融合学会
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詳細情報 詳細情報について
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- CRID
- 1390288691668596864
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- NII論文ID
- 130008064613
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- ISSN
- 18806821
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可