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Particle-In-Cell Simulations of Shaped and Non-shaped Gaps in TEXTOR Test Limiter
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SYSNO ASEP 0336682 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Particle-In-Cell Simulations of Shaped and Non-shaped Gaps in TEXTOR Test Limiter Title PIC simulace pravoúhlých a seříznutých štěrbin ve zkušebním limiteru tokamaku TEXTOR Author(s) Komm, M. (CZ)
Pekarek, Z. (CZ)
Pánek, Radomír (UFP-V) RID
Matveev, D. (DE)
Kirschner, A. (DE)
Litnovsky, A. (DE)Source Title WDS’09 Proceedings of Contributed Papers, 2 - Physics of Plasmas and Ionized Media. - Prague : MATFYZPRESS, Prague, 2009 / Šafránková J. ; Pavlů J. - ISBN 978-80-7378-102-6 Pages s. 169-175 Number of pages 7 s. Publication form web - web Action Annual conference of doctoral students - WDS 2009 /18./ Event date 02.06.2009-05.06.2009 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords gap ; divertor ; limiter ; PIC ; deposition ; SOL Subject RIV BL - Plasma and Gas Discharge Physics CEZ AV0Z20430508 - UFP-V (2005-2011) Annotation In this paper, we present results of Particle-In-Cell simulations of the plasma behavior in the vicinity of gaps in castellated plasma-facing components. We studied gaps in the test limiter of TEXTOR, which is a plasma-facing component designed for studies of impurity transport and fuel retention, mainly via hydrocarbon layer formation. The castellated limiter tiles have been analyzed using the postmortem techniques and first attempts of impurity transport modelling were done using the 3DGAP code [Matveev et al., 2008]. In order to improve the agreement between modeling and experiment, realistic plasma particle flux distribution needs to be included in the code. For this purpose, a series of PIC simulations for varying plasma conditions was performed by using the SPICE2 code [Dejarnac et al., 2008]. Plasma behavior inside the gaps is discussed and semi-empiric characterization via generic fitting procedure is proposed Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
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