Počet záznamů: 1
Particle-In-Cell simulations of the Ball-pen probe
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SYSNO ASEP 0349663 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Particle-In-Cell simulations of the Ball-pen probe Tvůrce(i) Komm, M. (CZ)
Adámek, Jiří (UFP-V) RID, ORCID
Pekárek, Z. (CZ)
Pánek, Radomír (UFP-V) RIDZdroj.dok. Contributions to Plasma Physics. - : Wiley - ISSN 0863-1042
Roč. 50, č. 9 (2010), s. 814-818Poč.str. 6 s. Forma vydání web - web Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova Ball-pen ; tokamak ; plasma ; plasma potential ; PIC ; simulation ; I-V characteristics Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEP KJB100430901 GA AV ČR - Akademie věd CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000284135100005 DOI 10.1002/ctpp.201010137 Anotace In this paper, we present results of Particle-In-Cell simulations of a simplified model of the Ball-pen probe (BPP). The BPP is a probe designed for direct measurements of plasma potential in the scrape-off layer (SOL) of tokamaks. The probe is based on a standard Langmuir theory, which states that when the ratio of ion and electron saturation currents flowing to the probe collector approaches zero, the floating potential of the collector is close to the plasma potential. However, it is unclear whether the Langmuir theory is still valid in such a complex geometry, where the probe tunnel can work as a filter in velocity phase-space and as such violates the Maxwellian distributions of particle velocities. To verify the validity of the theory a simplified model of BPP has been studied using the SPICE2 code. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2011
Počet záznamů: 1