Numerical analysis of plasma spatial uniformity in negative ion sources by a fluid model

Autor:	T. Sakurabayashi, T. Mizuno, Akiyoshi Hatayama, N. Imai, T. Morishita, Y. Kitade, Takashi Inoue
Rok vydání:	2004
Předmět:	Physics Field (physics) Plasma parameters Plasma Electron Ion symbols.namesake Physics::Plasma Physics Electric field symbols Diamagnetism Atomic physics Instrumentation Lorentz force
Zdroj:	Review of Scientific Instruments. 75:1760-1763
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1695622
Popis:	A fluid plasma model of negative ion sources is developed to analyze a spatial nonuniformity of plasma profile in the extraction region. According to a preliminary two-dimensional (2D) analysis in the direction perpendicular to the magnetic-filter field, the E×B and diamagnetic drifts of electrons are shown to be almost cancelled. On the other hand, ion flow arises from the synergic effect of Lorentz force and the electric field force. This ion flow is one of the possible causes of the plasma nonuniformity in the extraction region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::46281a4415de672ebc851ef21e751be1 https://doi.org/10.1063/1.1695622 Zobrazit plný text záznamu