Počet záznamů: 1
Sustained W-melting experiments on actively cooled ITER-like plasma facing unit in WEST
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SYSNO ASEP 0552292 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Sustained W-melting experiments on actively cooled ITER-like plasma facing unit in WEST Tvůrce(i) Corre, Y. (FR)
Grosjean, A. (FR)
Gunn, J. P. (FR)
Krieger, K. (DE)
Ratynskaia, S. (SE)
Skalli-Fettachi, O. (FR)
Bourdelle, C. (FR)
Brezinsek, S. (DE)
Bruno, V. (FR)
Chanet, N. (FR)
Coenen, J. (US)
Courtois, X. (FR)
Dejarnac, Renaud (UFP-V) RID, ORCID
Delmas, E. (FR)
Delpech, L. (FR)
Desgranges, C. (FR)
Diez, M. (FR)
Dubus, G. (FR)
Durif, A. (FR)
Ekedahl, A. (FR)
Fedorczak, N. (FR)
Firdaouss, M. (FR)
Gardarein, J.-L. (FR)
Gaspar, J. (FR)
Gerardin, Jonathan (UFP-V) ORCID
Guillemaut, C. (FR)
Houry, M. (FR)
Loarer, T. (FR)
Maget, P. (FR)
Mandelbaum, P. (IL)
Mitteau, R. (FR)
Missirlian, M. (FR)
Moreau, P. (FR)
Nouailletas, R. (FR)
Nardon, E. (FR)
Pocheau, C. (FR)
Podolnik, A. (US)
Reilhac, P. (FR)
Regal-Mezin, X. (FR)
Reux, C. (FR)
Richou, M. (FR)
Rigollet, F. (FR)
Schwob, J. (FR)
Thorén, E. (SE)
Tolias, P. (SE)
Tsitrone, E. (FR)Celkový počet autorů 46 Číslo článku 124057 Zdroj.dok. Physica Scripta. - : Institute of Physics Publishing - ISSN 0031-8949
Roč. 96, č. 12 (2021)Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. SE - Švédsko Klíč. slova Heat flux calculation ; Ir thermography ; Plasma facing unit ; Tungsten melting Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) Způsob publikování Omezený přístup Institucionální podpora UFP-V - RVO:61389021 UT WOS 000715528800001 EID SCOPUS 85119062391 DOI 10.1088/1402-4896/ac326a Anotace The consequences of tungsten (W) melting on divertor lifetime and plasma operation are high priority issues for ITER. Sustained and controlled W-melting experiment has been achieved for the first time in WEST on a poloidal sharp leading edge of an actively cooled ITER-like plasma facing unit (PFU). A series of dedicated high power steady state plasma discharges were performed to reach the melting point of tungsten. The leading edge was exposed to a parallel heat flux of about 100MW.m-2 for up to 5 s providing a melt phase of about 2 s without noticeable impact of melting on plasma operation (radiated power and tungsten impurity content remained stable at constant input power) and no melt ejection were observed. The surface temperature of theMBwas monitored by a high spatial resolution (0.1mm/pixel) infrared camera viewing the melt zone from the top of the machine. The melting discharge was repeated three times resulting in about 6 s accumulated melting duration leading to material displacement from three similar pools. Cumulated on the overall sustained melting periods, this leads to excavation depth of about 230 µmfollowed by a re-solidified tungsten bump of 200 µmin the JxB direction. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2022 Elektronická adresa https://iopscience.iop.org/article/10.1088/1402-4896/ac326a
Počet záznamů: 1