Journal
PLASMA SOURCES SCIENCE & TECHNOLOGY
Volume 30, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6595/ac1df0
Keywords
Boltzmann kinetic equation; gas discharge; low-temperature plasma; nonlocal electron distribution function
Categories
Funding
- National Natural Science Foundation of China [11775062]
Ask authors/readers for more resources
This study investigates the formation mechanisms of an inverse electron distribution function (EDF) in gas-discharge plasma. It is shown that in classical glow discharges, regions of EDF inversion are located in transition regions to the right and left of the positive column. The numerical simulation results reveal interesting features in the behavior of the EDF near the second reversal point of the electric field.
The formation mechanisms of an inverse electron distribution function (EDF) in gas-discharge plasma are investigated. An approximate analytical model of an inverse EDF in an inhomogeneous electric field and the formation criteria are presented. It is shown that the regions of EDF inversion in classical glow discharges are located in the transition regions to the right and left of the positive column in areas with significant gradients of the electron density. An interesting feature of the EDF behavior in the vicinity of the second reversal point of the electric field is discovered in the numerical simulation results. At least one of the second-order partial derivatives in the solution of the Boltzmann kinetic equation for the isotropic part of the EDF has a discontinuity at this point.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available