Počet záznamů: 1

Modelling of impurity deposition in gaps of castellated surfaces with the 3D-GAPS code

SYSNO ASEP	0349592
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Modelling of impurity deposition in gaps of castellated surfaces with the 3D-GAPS code
Tvůrce(i)	Matveev, D. (BE) Kirschner, A. (DE) Litnovsky, A. (DE) Borodin, D. (DE) Philipps, V. (DE) Van Oost, G. (BE) Komm, Michael (UFP-V)_{RID, ORCID}
Zdroj.dok.	Plasma Physics and Controlled Fusion. - : Institute of Physics Publishing - ISSN 0741-3335 Roč. 52, č. 7 (2010), 075007-075007
Poč.str.	13 s.
Forma vydání	web - web
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	TEXTOR ; simulation ; PIC ; impurity ; transport ; gap ; divertor ; limiter ; retention
Vědní obor RIV	BL - Fyzika plazmatu a výboje v plynech
CEP	GA202/07/0044 GA ČR - Grantová agentura ČR
CEZ	AV0Z20430508 - UFP-V (2005-2011)
UT WOS	000278906200008
DOI	10.1088/0741-3335/52/7/075007
Anotace	The Monte-Carlo neutral transport code 3D-GAPS is described. The code models impurity transport and deposition in remote areas, such as gaps between cells of castellated plasma-facing surfaces. A step-by-step investigation of the interplay of different processes that may influence the deposition inside gaps, namely particle reflection, elastic neutral collisions, different particle sources, chemical erosion and plasma penetration into gaps, is presented. Examples of modelling results in application to the TEXTOR experiment with a castellated test limiter are provided. It is shown that only with the assumption of the presence of species with different reflection probabilities, do simulated carbon deposition profiles agree with experimental observations for side surfaces of the gaps. These species can be attributed to different particle sources, e.g. carbon atoms and hydrocarbon radicals. Background carbon ions and atoms have low and moderate values of the reflection coefficient(R <_0.6
Pracoviště	Ústav fyziky plazmatu
Kontakt	Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
Rok sběru	2011

Počet záznamů: 1