Počet záznamů: 1
Measurement of plasma flows into tile gaps
- 1.
SYSNO ASEP 0334872 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Measurement of plasma flows into tile gaps Překlad názvu Měření toku plazmatu do divertorových štěrbin Tvůrce(i) Dejarnac, Renaud (UFP-V) RID, ORCID
Komm, Michael (UFP-V) RID, ORCID
Stöckel, Jan (UFP-V) RID
Pánek, Radomír (UFP-V) RIDZdroj.dok. Journal of Nuclear Materials. - : Elsevier - ISSN 0022-3115
Roč. 382, č. 1 (2008), s. 31-34Poč.str. 4 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Tokamak diagnostic ; Gaps ; Ion saturation current ; Edge modeling ; Sheaths Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEP KJB100430602 GA AV ČR - Akademie věd CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000261478000003 DOI 10.1016/j.jnucmat.2008.09.008 Anotace Particle fluxes falling into narrow gaps are of high interest since international thermonuclear experimental reactor plasma facing components will be castellated. In order to investigate the plasma deposition in gaps between tiles, we have developed a special probe that recreates a gap and that can measure the ion saturation current profiles along its both sides. Measurements were performed in the tokamak Czech Academy of Sciences TORus and are compared with a self-consistent kinetic model. The simulations reproduce well the observed asymmetry of the plasma deposition in both poloidal and toroidal gaps and the intensity of the collected currents is well-estimated. However, the agreement is less perfect for poloidal gaps due to the presence of a positive peak on the negative potential inside the gap. Therefore, the plasma deposition does not decay exponentially like in toroidal gaps. Nevertheless, this unique set of experiments confirms globally the results of our model. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2010
Počet záznamů: 1