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A new hard x-ray spectrometer for runaway electron measurements in tokamaks
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SYSNO ASEP 0584062 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A new hard x-ray spectrometer for runaway electron measurements in tokamaks Author(s) Dal Molin, A. (IT)
Nocente, M. (IT)
Dalla Rosa, M. (IT)
Panontin, E. (IT)
Rigamonti, M. (IT)
Tardocchi, M. (IT)
Shevelev, A. (RU)
Khilkevitch, E. (RU)
Iliasova, M. (RU)
Giacomelli, L. (IT)
Gorini, G. (IT)
Perelli Cippo, E. (IT)
D’Isa, F. (DE)
Pautasso, G. (DE)
Papp, G. (DE)
Tardini, G. (DE)
Tomešová, Eva (UFP-V) ORCID
Čeřovský, Jaroslav (UFP-V)
Ficker, Ondřej (UFP-V) ORCID
Salewski, M. (DK)
Kiptily, V. (GB)Number of authors 21 Article number 085501 Source Title Measurement Science and Technology. - : Institute of Physics Publishing - ISSN 0957-0233
Roč. 34, č. 8 (2023)Number of pages 10 s. Language eng - English Country US - United States Keywords nuclear instruments and methods for hot plasma diagnostics ; runaway electrons ; x-ray detectors Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) Method of publishing Open access Institutional support UFP-V - RVO:61389021 UT WOS 000991825600001 EID SCOPUS 85160350926 DOI 10.1088/1361-6501/acd46c Annotation Runaway electron gamma-ray detection system, a novel hard x-ray (HXR) spectrometer optimized for bremsstrahlung radiation measurement from runaway electrons in fusion plasmas, has been developed. The detector is based on a 1‘×1’ LaBr3:Ce scintillator crystal coupled with a photomultiplier tube. The system has an energy dynamic range exceeding 20 MeV with an energy resolution of 3% at 661.7 keV. The detector gain is stable even under severe loads, with a gain shift that stays below 3% at HXR counting rates in excess of 1 MCps. The performance of the system enables unprecedented studies of the time-dependent runaway electron energy distribution function, as shown in recent runaway electron physics experiments at the ASDEX Upgrade and COMPASS tokamaks. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2024 Electronic address https://iopscience.iop.org/article/10.1088/1361-6501/acd46c
Number of the records: 1