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Tomographic Inversion Technique Using Orthogonal Basis Patterns
http://hdl.handle.net/10655/00013245
http://hdl.handle.net/10655/00013245b1f043e5-922c-43a3-a4fa-6e5bb5734b3c
| 名前 / ファイル | ライセンス | アクション |
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11832_PFR (808.9 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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| 公開日 | 2022-06-20 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Tomographic Inversion Technique Using Orthogonal Basis Patterns | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | tomography | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Heliotron-J | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | orthogonal | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | series expansion | |||||||||||||||
| 資源タイプ | ||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||
| 資源タイプ | journal article | |||||||||||||||
| 著者 |
OHDACHI, Satoshi
× OHDACHI, Satoshi
× YAMAMOTO, Satoshi
× SUZUKI, Yasuhiro
× PUROHIT, Shishir
× IWAMA, Naofumi
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| 著者ID | ||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||
| 内容記述 | 0000-0001-6286-8874 | |||||||||||||||
| 抄録 | ||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | Tomographic reconstruction of the emission profile is a typical ill-posed inversion problem. It becomes troublesome in fusion plasma diagnostics because the possible location/direction of the observation is quite limited. In order to overcome the difficulty, many techniques have been developed. Among them, series expansion methods are based on decomposing the emission profile with orthogonal or nearly orthogonal basis patterns. Since it is possible to ignore the surplus components with higher spatial frequency, this type of method is robust against noise issues. Two topics are discussed in this article. The first issue is the comparison of the basis systems themselves. Conventional one of Fourier-Bessel and a new one of the so-called Laplacian eigen function are compared from the viewpoint of the capability of expressing the patterns that appear in the fusion plasma experiment. The second issue is the application to the tangential viewing imaging system. It is shown that, even from the limited information, tomographic reconstruction can be adequately performed with appropriate use of the regularization, especially with the use of the L1 regularization. | |||||||||||||||
| 書誌情報 |
Plasma and Fusion Research 巻 14, 号 Special Issue 2, p. 3402087, 発行日 2019-06-03 |
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| 書誌的事項 | ||||||||||||||||
| the 27th International Toki Conference (ITC27) & the 13th Asia Pacific Plasma Theory Conference (APPTC2018) | ||||||||||||||||
| 出版者 | ||||||||||||||||
| 出版者 | The Japan Society of Plasma Science and Nuclear Fusion Research | |||||||||||||||
| ISSN | ||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||
| 収録物識別子 | 1880-6821 | |||||||||||||||
| 書誌レコードID | ||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||
| 収録物識別子 | AA12346675 | |||||||||||||||
| DOI | ||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | 10.1585/pfr.14.3402087 | |||||||||||||||
| 権利 | ||||||||||||||||
| 権利情報 | (c) 2019 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||||||||||||
| 関連サイト | ||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | https://doi.org/10.1585/pfr.14.3402087 Details | |||||||||||||||
| 関連名称 | Publisher version | |||||||||||||||
| 著者版フラグ | ||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||
| NAIS | ||||||||||||||||
| 11832 | ||||||||||||||||
