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Concept of the bolometry diagnostics design for COMPASS-Upgrade
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SYSNO ASEP 0543100 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Concept of the bolometry diagnostics design for COMPASS-Upgrade Tvůrce(i) Mikszuta-Michalik, Katarzyna (UFP-V) ORCID
Imríšek, Martin (UFP-V) RID
Svoboda, Jakub (UFP-V)
Weinzettl, Vladimír (UFP-V) RID, ORCID
Bílková, Petra (UFP-V) RID
Hron, Martin (UFP-V) RID, ORCID
Pánek, Radomír (UFP-V) RIDCelkový počet autorů 7 Číslo článku 112421 Zdroj.dok. Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
Roč. 168, July (2021)Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova AXUV diodes ; Bolometry ; compass-u ; Metallic foil bolometers ; Tokamak Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) CEP EF16_019/0000768 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora UFP-V - RVO:61389021 UT WOS 000670075500004 EID SCOPUS 85102034925 DOI 10.1016/j.fusengdes.2021.112421 Anotace The COMPASS-Upgrade tokamak, being designed as a medium-sized tokamak, operating with a hot first wall, allows for the study of DEMO-relevant plasma exhaust physics, crucial for future reactors. Bolometry diagnostics for COMPASS-U, consisting of metal foil bolometers and AXUV diodes, are proposed to measure spatially- and time-resolved radiation losses. Metal foil bolometers supply the absolute value of radiation power, whereas the AXUV diodes can observe fast phenomena such as MHD activity. Coverage of the whole poloidal cross-section by bolometers’ cameras allows tomography reconstruction of the local plasma emissivity. The metallic foil bolometry system will be based on sensors with a gold absorber on a silicon nitride substrate with a platinum resistor. Special modifications, e.g., channel separation, will be applied to the detectors to fulfil the requirements. Due to the high temperature, effective thermal shielding and cooling are essential to reduce the risk of damage to the detectors as well as reducing noise in the measured signal. The pin-hole cameras spatial configuration was optimized to provide the best performance under the given engineering constraints. The position of the cameras strongly depends on the space available behind the plasma-facing components (PFC). The proposed layout allows for an efficient observation of the confined plasma as well as that of the divertor region. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2022 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0920379621001976?via%3Dihub
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