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Effect of energy dependent cross-section on flow velocity measurements with charge exchange spectroscopy in magnetized plasma
http://hdl.handle.net/10655/00012706
http://hdl.handle.net/10655/000127062a215125-4395-4ca7-9fb9-77072dffc2b4
名前 / ファイル | ライセンス | アクション |
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Physics.Lett A_383_pp1293-1299 (1.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-14 | |||||
タイトル | ||||||
タイトル | Effect of energy dependent cross-section on flow velocity measurements with charge exchange spectroscopy in magnetized plasma | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Charge exchange spectroscopy | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Flow velocity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cross section | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Excited state | |||||
キーワード | ||||||
主題Scheme | Other | |||||
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 |
CHEN, J.
× CHEN, J.× IDA, Katsumi× MURAKAMI, Izumi× Kobayashi, Tatsuya× YE, M. Y.× LYU, B. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Charge exchange spectroscopy (CXS) is widely used to measure plasma flow velocity. Accurate measurement is heavily affected by energy dependent cross section between neutral atoms and impurity ions. One symmetric layout of poloidal CXS is applied on Large Helical Device. Correction velocity due to the cross section is exacted from total velocity when actual plasma flow velocity is acquired with the benefit of this layout. A linear relationship between correction velocity and ion temperature is observed. Abundant discharges with wide plasma conditions are investigated and the ratio of correction velocity to ion temperature with the same beam energy shows the normal distribution. The impact of beam energy on the ratio of correction velocity to ion temperature of the carbon system and the hydrogen system is discovered based upon the statistics. Effective emission coefficient (Q) from Atomic Data and Analysis Structure (ADAS) is utilized to study the dependence of correction velocity on Q. The relationship in which the ratio of correction velocity to ion temperature increases linearly with the increasing normalized effective emission coefficient ((1/Q)dQ/dv) is observed. Experimental (1/Q)dQ/dv is obtained according to this observation, and comparison with different fractions of n = 2 excited state is also discussed. The influence of different receivers (carbon and hydrogen) is also presented. The experimental (1/Q)dQ/dv from the carbon system decreases with beam energy decreasing when beam energy is less than 30 keV/amu. This tendency of (1/Q)dQ/dv at low beam energy indicates the existence of the contribution of n = 2 excited state donors to the cross section. | |||||
書誌情報 |
Physics Letters A 巻 383, 号 12, p. 1293-1299, 発行日 2019-01 |
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出版者 | ||||||
出版者 | ELSEVIER | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0375-9601 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11537022 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.physleta.2019.01.032 | |||||
権利 | ||||||
権利情報 | Via their research institute or institutional repository for internal institutional uses or as part of an invitation-only research collaboration work-group. | |||||
権利 | ||||||
権利情報 | ©2019 Elsevier B.V. All rights reserved. | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.physleta.2019.01.032 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
NAIS | ||||||
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