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Estimates of foil thickness, signal, noise, and nuclear heating of imaging bolometers for ITER
http://hdl.handle.net/10655/00013403
http://hdl.handle.net/10655/00013403b2900ae6-2610-4b5f-84f8-d8e69cba4d3b
| 名前 / ファイル | ライセンス | アクション |
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13432_J.Inst (3.6 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||
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| 公開日 | 2022-07-21 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Estimates of foil thickness, signal, noise, and nuclear heating of imaging bolometers for ITER | |||||||||||||||||
| 言語 | ||||||||||||||||||
| 言語 | eng | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Plasma diagnostics - interferometry | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | spectroscopy and imaging | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Nuclear instruments and methods for hot plasma diagnostics | |||||||||||||||||
| 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 |
PETERSON, Byron J.
× PETERSON, Byron J.
× NISHITANI, Takeo
× REICHLE, Roger
× MUNECHIKA, K.
× O'MULLANE, M.G.
× MUKAI, Kiyofumi
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| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | Imaging bolometers have been studied for ITER to serve as a complementary diagnostic to the resistive bolometers for the measurement of radiated power. Two tangentially viewing InfraRed imaging Video Bolometers (IRVB) could be proposed for an ITER equatorial port, one having a view of the entire plasma cross-section (core viewing) and one tilted down 43 degrees from the horizontal to view the divertor (divertor viewing). The IRVBs have 7 cm (horizontal) by 9 cm (vertical) Pt sensor foils, 6 mm × 6 mm apertures, 15 × 20 pixels and focal lengths of 7.8 cm and 21 cm, respectively. Using SANCO and SOLPS models for a 840 m3 plasma radiating 67.3 MW, synthetic images from the IRVBs are calculated to estimate the maximum signal strengths to be 246 W/m2 and 62 W/m2, respectively. We propagate the X-ray energy spectra from the models through the synthetic diagnostics to give the photon energy spectrum for each IRVB pixel, which are used to calculate the fraction of the power absorbed by the foil as a function of foil thickness. Using a criteria of >95% absorbed power fraction, we selected foil thicknesses of 30 μm and 10 μm, respectively. We used these thicknesses and assumed IR systems having 105 fps, 1024×1280 pixels and sensitivities of 15 mK, to calculate the IRVB sensitivities of 3.19 W/m2 and 1.05 W/m2, and signal to noise ratios of 77 and 59, respectively. Using the Monte Carlo Nuclear Particle code we calculated for the core viewing IRVB the foil heating by neutrons to be 1.0 W/m2 and by gammas to be 117 W/m2. This indicates that countermeasures may be needed to remove the nuclear heating signal. | |||||||||||||||||
| 書誌情報 |
Journal of Instrumentation 巻 17, 号 June 2022, p. P06034, 発行日 2022-06-27 |
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| 出版者 | ||||||||||||||||||
| 出版者 | IOP Publishing | |||||||||||||||||
| ISSN | ||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||
| 収録物識別子 | 1748-0221 | |||||||||||||||||
| 書誌レコードID | ||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||
| 収録物識別子 | AA12456425 | |||||||||||||||||
| DOI | ||||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||
| 関連識別子 | https://doi.org/10.1088/1748-0221/17/06/P06034 | |||||||||||||||||
| 権利 | ||||||||||||||||||
| 権利情報 | © 2022 The Author(s) | |||||||||||||||||
| 権利 | ||||||||||||||||||
| 権利情報 | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. | |||||||||||||||||
| 権利 | ||||||||||||||||||
| 権利情報 | Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |||||||||||||||||
| 情報源 | ||||||||||||||||||
| 関連名称 | B.J. Peterson et al 2022 JINST 17 P06034 | |||||||||||||||||
| 関連サイト | ||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||
| 関連識別子 | https://doi.org/10.1088/1748-0221/17/06/P06034 | |||||||||||||||||
| 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 | ||||||||||||||||||
| 13432 | ||||||||||||||||||
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Cite as
PETERSON, Byron J., NISHITANI, Takeo, REICHLE, Roger, MUNECHIKA, K., O'MULLANE, M.G., MUKAI, Kiyofumi, 2022, Estimates of foil thickness, signal, noise, and nuclear heating of imaging bolometers for ITER: IOP Publishing , P06034– p.
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