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Conceptual design of tomographic soft X-ray detectors for COMPASS-U tokamak
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SYSNO ASEP 0554785 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Conceptual design of tomographic soft X-ray detectors for COMPASS-U tokamak Author(s) Svoboda, Jakub (UFP-V)
Imríšek, Martin (UFP-V) RID
Mikszuta-Michalik, Katarzyna (UFP-V) ORCID
Mlynář, Jan (UFP-V) RID
Ficker, Ondřej (UFP-V) ORCID
Bílková, Petra (UFP-V) RID
Weinzettl, Vladimír (UFP-V) RID, ORCID
Jaulmes, Fabien (UFP-V) ORCID
Hron, Martin (UFP-V) RID, ORCID
Pánek, Radomír (UFP-V) RIDNumber of authors 10 Article number 112656 Source Title Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
Roč. 168, July (2021)Number of pages 10 s. Language eng - English Country CH - Switzerland Keywords compass-u ; Spectroscopy ; Tomography Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects EF16_019/0000768 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFP-V - RVO:61389021 UT WOS 000670075800001 EID SCOPUS 85110258541 DOI 10.1016/j.fusengdes.2021.112656 Annotation The COMPASS-U tokamak is designed at IPP CAS Prague. It will be a compact device that should achieve high toroidal magnetic field and high wall temperatures. In order to observe fast phenomena, photodiode arrays combined with beryllium filters and a pinhole are planned to be used as Soft X-Ray (SXR) detectors. Operational temperatures of photodiodes are typically below 100 °C and planned first wall temperatures as high as 500 °C for the later phases of operation. Therefore, an actively cooled support structure housing the detector has to be designed. Moreover, in order to obtain good inversion results the layout of tomographic diagnostics systems have to be optimised to provide the best possible coverage of the plasma. The proposed SXR system consists of two sets of detectors with different filter thickness enabling the use of the two filter method for electron temperature estimation. Both sets will share the same line of sight layout for better comparability. Optimisation of this layout is adapted for limited options of detector placement and extensive testing of tomography capabilities is performed. Results of these tests are shown for one of considered layouts. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2022 Electronic address https://www.sciencedirect.com/science/article/pii/S0920379621004324?via%3Dihub
Number of the records: 1