Open AccessA 2D semi-analytical electromagnetic model for cylindrical ICP sources with Faraday shield
Author(s) -
P Chen,
Jian Yang,
Lulu Zhou,
Chen Zuo,
D Li,
D Chen
Publication year - 2022
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 - 10.1088/1742-6596/2244/1/012058
Subject(s) - electric field , faraday cage , electromagnetic field , plasma , physics , coupling (piping) , shield , magnetic field , field (mathematics) , optical field , computational physics , electromagnetic radiation , optics , materials science , geology , petrology , mathematics , quantum mechanics , pure mathematics , metallurgy
Faraday shield(FS) is a metallic shield with slits through which electromagnetic energy is coupled into cylindrical ICP sources. Thus, the effect of FS on the RF field and power coupling is important. A 2D semi-analytical electromagnetic model considering both FS and plasma is proposed. The results compared to a 2D numerical model shows that the semi-analytical model is available in electromagnetic field calculations. It is found that both FS and plasma have no influence on the magnetic field outside them. FS strengthens the electric field around the slits and weakens the electric field around the middle of the stripes, and this effect is due to the gradient field generated by the electric charge accumulated on the FS surfaces. From the point of view of the pure 2D electromagnetic field, FS affects the electric field distribution in a small region, and it seems to not affect the total power coupling into plasma.