Angular anisotropy of electron energy distributions in inductively coupled plasmas
Angular anisotropy of electron energy distributions in inductively coupled plasmas
复制标题
电感耦合等离子体中电子能量分布的角各向异性
DOI:
10.1063/1.1614428
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发表时间:
2003
影响因子:
3.2
通讯作者:
M. Kushner
中科院分区:
文献类型:
--
作者:
A. Vasenkov;M. Kushner
The noncollisional electron transport that is typical of low-pressure (<10 mTorr) and low-frequency (<10 MHz) inductively coupled plasmas (ICPs) has the potential to produce highly anisotropic angle-dependent electron energy distributions (AEEDs). The properties of AEEDs in axially symmetric ICPs were investigated using a Monte Carlo simulation (MCS) embedded in a two-dimensional plasma equipment model. A method was developed to directly compute the coefficients for a Legendre polynomial expansion of the angular dependence of the distributions during advancement of the trajectories of pseudoelectrons in the MCS. We found significant anisotropy in the AEEDs for transport in the azimuthal–radial plane for a wide range of pressures and frequencies, and attributed this behavior to the superposition of both linear and nonlinear forces. The angular anisotropy of AEEDs in the radial–axial plane in the bulk plasma was found to be significant only when the skin layer was anomalous and nonlinear Lorentz forces are ...