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Validations of calibration-free measurements of electron temperature using double-pass Thomson scattering diagnostics from theoretical and experimental aspects
https://repo.qst.go.jp/records/48596
https://repo.qst.go.jp/records/48596544167f8-df2f-4aa9-9991-1a53a2428990
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-03-19 | |||||
| タイトル | ||||||
| タイトル | Validations of calibration-free measurements of electron temperature using double-pass Thomson scattering diagnostics from theoretical and experimental aspects | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
東條, 寛
× 東條, 寛× 山田一博× 安原亮× 江尻晶× 平塚, 淳一× 富樫央× 谷塚, 英一× 波多江, 仰紀× 舟場久芳× 林, 浩× 高瀬雄一× 伊丹, 潔× 東條 寛× 平塚 淳一× 谷塚 英一× 波多江 仰紀× 伊丹 潔 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | This paper evaluates the accuracy of electron temperature measurements and relative transmissivities of double-pass Thomson scattering diagnostics. The electron temperature (Te) is obtained from the ratio of signals from a double-pass scattering system, then relative transmissivities are calculated from the measured Te and intensity of the signals. How accurate the values are depends on the electron temperature (Te) and scattering angle , and therefore the accuracy of the values was evaluated experimentally using the Large Helical Device (LHD) and the Tokyo spherical tokamak-2 (TST-2). Analyzing the data from the TST-2 indicates that a high Te and a large scattering angle yield accurate values. Indeed, the errors for scattering angle 135deg. are approximately half of those for 115deg . The method of determining the Te in a wide Te range spanning over two orders of magnitude (0.01–1.5 keV) was validated using the experimental results of the LHD and TST-2. A simple method to provide relative transmissivities, which include inputs from collection optics, vacuum window, optical fibers, and polychromators, is also presented. The relative errors were less than approximately 10%. Numerical simulations also indicate that the Te measurements are valid under harsh radiation conditions. This method to obtain Te can be considered for the design of Thomson scattering systems where there is high-performance plasma that generates harsh radiation environments. | |||||
| 書誌情報 |
Review of scientific instruments 巻 87, 号 9, p. 093502-1-093502-11, 発行日 2016-09 |
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| 出版者 | ||||||
| 出版者 | American Institute Of Physics | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0034-6748 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/1.4961476 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://aip.scitation.org/doi/full/10.1063/1.4961476 | |||||
| 関連名称 | http://aip.scitation.org/doi/full/10.1063/1.4961476 | |||||
