More about hot electrons between cold walls

This paper adds new findings to the recently described hampering of electron cooling by electron trapping in a developing electrostatic potential well between the two cold walls [D. I. Kiramov and B. N. Breizman, Phys. Plasmas 27, 022302 (2020)]. We show that the self-consistent process of the poten...

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Published in:Physics of plasmas 2020-08, Vol.27 (8)
Main Authors: Kiramov, Dmitrii I., Breizman, Boris N.
Format: Article
Language:English
Subjects:
Decay rate
Hot electrons
Ion motion
Kinetic energy
Plasma physics
Plasmas (physics)
Trapping
Walls
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description This paper adds new findings to the recently described hampering of electron cooling by electron trapping in a developing electrostatic potential well between the two cold walls [D. I. Kiramov and B. N. Breizman, Phys. Plasmas 27, 022302 (2020)]. We show that the self-consistent process of the potential well formation and electron trapping is tractable analytically when the end walls reflect most of the incoming electrons. For immobile ions, this process creates a steady-state that retains a significant fraction of the initial electron kinetic energy. We also describe the subsequent slow decay of the system due to ion motion.
doi_str_mv 10.1063/5.0014303
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source American Institute of Physics (AIP) Publications; American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects Decay rate
Hot electrons
Ion motion
Kinetic energy
Plasma physics
Plasmas (physics)
Trapping
Walls
title More about hot electrons between cold walls
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