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Radiation Resistant Camera System for Monitoring Deuterium Plasma Discharges in the Large Helical Device
http://hdl.handle.net/10655/00013210
http://hdl.handle.net/10655/0001321092f7a977-8ec8-4236-8bc8-7272c8f6e081
名前 / ファイル | ライセンス | アクション |
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12081_PFR (5.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-06-13 | |||||
タイトル | ||||||
タイトル | Radiation Resistant Camera System for Monitoring Deuterium Plasma Discharges in the Large Helical Device | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | radiation resistant camera | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | neutron | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | gamma-ray | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CCD | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | deuterium plasma | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LHD | |||||
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 |
SHOJI, Mamoru
× SHOJI, Mamoru× LHD Experiment Group |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0003-0655-7347 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Radiation resistant camera system was constructed for monitoring deuterium plasma discharges in the Large Helical Device (LHD). This system has contributed to safe operation during two experimental campaigns without serious problems due to radiation (neutrons and gamma-rays). The cameras steadily functioned even in the plasma discharge with the maximum neutron emission rate in FY 2017, though some bright specks temporarily appeared on the images. The cameras have been installed in shield boxes which consist of lead boxes covered with 10% borated polyethylene blocks in all directions. For optimizing the design of the shield box, the radiation flux distribution was calculated by MCNP-6 code, which reveals the reduction of the radiation flux and the change of the energy spectra in the shield box. Thanks to the optimization, significant extension of the lifetime of the cameras has been realized. Investigation of the influence of the radiation on the CCD image sensor shows that the number of bright specks generally increases with the radiation flux to the camera, which also indicates that some bright specks disappear by the self-annealing process on the image sensor. This phenomenon also highly contributes to the further extension of the lifetime of the radiation resistant cameras. | |||||
書誌情報 |
Plasma and Fusion Research 巻 15, 号 Special Issue 1, p. 2402039, 発行日 2020-06-08 |
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書誌的事項 | ||||||
the 28th International Toki Conference on Plasma and Fusion Research (ITC28) | ||||||
出版者 | ||||||
出版者 | The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1880-6821 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12346675 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.15.2402039 | |||||
権利 | ||||||
権利情報 | (c) 2020 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1585/pfr.15.2402039 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NAIS | ||||||
12081 |