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Estimation of the Fast-Ion Anisotropy Effect on the Neutron Source Intensity Measurement and the Experimental Observation
http://hdl.handle.net/10655/00012856
http://hdl.handle.net/10655/00012856f022fc1b-636a-4de1-9519-425e8908ec8f
名前 / ファイル | ライセンス | アクション |
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IEEE.Trans.Plasma.Sci_47_pp12-17 (895.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-27 | |||||
タイトル | ||||||
タイトル | Estimation of the Fast-Ion Anisotropy Effect on the Neutron Source Intensity Measurement and the Experimental Observation | |||||
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 | |||||
著者 |
NISHITANI, Takeo
× NISHITANI, Takeo× MATSUURA, Hideaki× PU, Neng× OGAWA, Kunihoro× Kawase, Hiroki× ISOBE, Mitsutaka |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0003-2254-3164 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In the large helical device (LHD) deuterium plasma experiment, the neutron emission rate and the shot-integrated neutron yield are measured with the neutron flux monitor (NFM) and the neutron activation system (NAS), respectively, where the neutron emission is assumed to be isotropic in the plasma. The differential cross section of the D(d,n) 3 He reaction has a large anisotropy for the forward direction of the incident deuteron direction. LHD has intensive tangential neutral beam injectors (NBIs), which may cause an anisotropic neutron emission in the plasma. The angular distribution of the neutron emission is calculated from the fast-ion distribution function evaluated by a code that solves Fokker-Plank equations for the 180-keV tangential NBI. The effect of the anisotropic neutron emission on the NFM and NAS measurements is estimated by a general-purpose Monte Carlo N-particle (MCNP) code calculations. Also, the effect is confirmed experimentally. The neutron emission rate measured with the NFM near the equatorial port is about 10% larger than that with the NFM at the top of the LHD center axis. The shot-integrated neutron yield measured with NAS is 25% larger than that with NFM at the top of the LHD center axis in the case of the tangential neutral beam injection, which is consistent with the MCNP calculation. | |||||
書誌情報 |
IEEE Transactions on Plasma Physics 巻 47, 号 1, p. 12-17, 発行日 2018-07-02 |
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出版者 | ||||||
出版者 | IEEE | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00933813 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA0066803X | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1109/TPS.2018.2846776 | |||||
権利 | ||||||
権利情報 | © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | |||||
情報源 | ||||||
関連名称 | T. Nishitani, H. Matsuura, N. Pu, K. Ogawa, H. Kawase and M. Isobe, "Estimation of the Fast-Ion Anisotropy Effect on the Neutron Source Intensity Measurement and the Experimental Observation," in IEEE Transactions on Plasma Science, vol. 47, no. 1, pp. 12-17, Jan. 2019, doi: 10.1109/TPS.2018.2846776. | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1109/TPS.2018.2846776 | |||||
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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