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Neutron spectroscopy measurements of 14 MeV neutrons at unprecedented energy resolution and implications for deuterium–tritium fusion plasma diagnostics
https://repo.qst.go.jp/records/74876
https://repo.qst.go.jp/records/748769c86872d-195e-473b-a7ea-f3b823ef3471
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-03-19 | |||||
| タイトル | ||||||
| タイトル | Neutron spectroscopy measurements of 14 MeV neutrons at unprecedented energy resolution and implications for deuterium–tritium fusion plasma diagnostics | |||||
| 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 |
Rigamonti, D
× Rigamonti, D× Giacomelli, L× Gorini, G× Nocente, M× Rebai, M× Tardocchi, M× Angelone, M× P, Batistonい× Cufar, A× Ghani, Z× Jednorog, S× Klix, A× Laszynska, E× Loreti, S× Pillon, M× Popovichev, S× Roberts, N× Thomas, D× Aiba, Nobuyuki× Uto, Hiroyasu× Imazawa, Ryota× Hoshino, Kazuo× Kamiya, Kensaku× Miyoshi, Yuuya× Asakura, Nobuyuki× Nakano, Tomohide× Ogawa, Toshihide× Suzuki, Takahiro× Tojo, Hiroshi× Urano, Hajime× Aiba, Nobuyuki× Uto, Hiroyasu× Imazawa, Ryota× Hoshino, Kazuo× Kamiya, Kensaku× Miyoshi, Yuuya× Asakura, Nobuyuki× Nakano, Tomohide× Ogawa, Toshihide× Suzuki, Takahiro× Tojo, Hiroshi× Urano, Hajime |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | An accurate calibration of the JET neutron diagnostics with a 14 MeV neutron generator was performed in the first half of 2017 in order to provide a reliable measurement of the fusion power during the next JET deuterium–tritium (DT) campaign. In order to meet the target accuracy, the chosen neutron generator has been fully characterized at the Neutron Metrology Laboratory of the National Physical Laboratory (NPL), Teddington, United Kingdom. The present paper describes the measurements of the neutron energy spectra obtained using a high-resolution single-crystal diamond detector (SCD). The measurements, together with a new neutron source routine 'ad hoc' developed for the MCNP code, allowed the complex features of the neutron energy spectra resulting from the mixed D/T beam ions interacting with the T/D target nuclei to be resolved for the first time. From the spectral analysis a quantitative estimation of the beam ion composition has been made. The unprecedented intrinsic energy resolution (<1% full width at half maximum (FWHM) at 14 MeV) of diamond detectors opens up new prospects for diagnosing DT plasmas, such as, for instance, the possibility to study non-classical slowing down of the beam ions by neutron spectroscopy on ITER. | |||||
| 書誌情報 |
Measurement Science and Technology 巻 29, 号 4, p. 045502, 発行日 2018-04 |
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| 出版者 | ||||||
| 出版者 | IOP Publishing | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1361-6501/aaa675 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1088%2F1361-6501%2Faaa675 | |||||
