Open AccessSymmetry breaking of plasma induced by pressure in PIG ion source
Author(s) -
Shaojia Ju,
Jie Li,
Jie Lu,
Xiaohua Zhou
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1601/6/062034
Subject(s) - ion , symmetry (geometry) , plasma , atomic physics , argon , electron density , ion source , symmetry breaking , gauge (firearms) , electron , work (physics) , physics , chemistry , materials science , geometry , thermodynamics , nuclear physics , quantum mechanics , mathematics , metallurgy
In this work, we use the COMSOL software to study the discharge characteristics of argon in the Penning ion gauge (PIG) ion source driven by DC voltage and based on a two-dimensional fluid model. The distribution of the electron density under different pressures is investigated. Our results indicate that, although the ion source has the symmetric geometry structure, the distribution of the electron density will lose the symmetry due to the change of pressures.