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Calibration experiments of [sup 3]He neutron detectors for analyzing neutron emissivity in the hot-ion mode on the GAMMA 10 tandem mirror.
http://hdl.handle.net/10191/24189
http://hdl.handle.net/10191/24189d8e4857d-47de-4b0d-b4f1-4aecb1165173
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2013-11-26 | |||||
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タイトル | Calibration experiments of [sup 3]He neutron detectors for analyzing neutron emissivity in the hot-ion mode on the GAMMA 10 tandem mirror. | |||||
タイトル | ||||||
タイトル | Calibration experiments of [sup 3]He neutron detectors for analyzing neutron emissivity in the hot-ion mode on the GAMMA 10 tandem mirror. | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
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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 |
Kohagura, J.
× Kohagura, J.× Cho, T.× Hirata, M.× Watanabe, H.× Minami, R.× Numakura, T.× Yoshida, M.× Ito, H.× Tatematsu, Y.× Yatsu, K.× Miyoshi, S.× Ogura, K.× Kondoh, T.× Nishitani, T.× Kwon, M.× England, A.C. |
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内容記述タイプ | Abstract | |||||
内容記述 | Under the international fusion cooperating research, ³He neutron detectors in the GAMMA 10 tandem mirror are calibrated by the use of a [sup 252]Cf spontaneous fission neutron source (8.96 × 10[sup 4]n/s). The calibration experiments are carried out with a "rail system" placed along the magnetic axis of the GAMMA 10 central-cell region, where hot ions in the plasma experiments with the bulk temperatures of ∼10 keV are produced. As compared to a previous neutron monitoring system with a BF[sub 3] detector in GAMMA 10, the present ³He systems are designed with about two orders-of-magnitude higher neutron-counting efficiency for analyzing a neutron emissivity from the plasmas in a single plasma discharge alone. Two ³He systems are installed near the middle and the end of the central cell so as to identify the central-cell hot-ion axial profile. The filling pressure of ³He, the effective length, and the diameter of the detector are designed as 5 bar, 300 mm, and 50 mm, respectively. The detector output spectra are carefully analyzed by the use of a preamplifier, a shaping amplifier, as well as a multichannel analyzer for each ³He detector. In the present article, the neutron-counting data from the two ³He detectors due to the on-axis [sup 252]Cf scan are interpreted in terms of the d[sup -2] intensity dependence (d being the distance between the detector and the neutron source) as well as the effects of the central-cell magnetic coils and the other machine structural components. | |||||
書誌情報 |
Review of Scientific Instruments en : Review of Scientific Instruments 巻 74, 号 3, p. 1757-1760, 発行日 2003-03 |
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出版者 | American Institute of Physics | |||||
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収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00346748 | |||||
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収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00817730 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1063/1.1534402 | |||||
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値 | publisher |