Modification of classical electron transport due to collisions between electrons and fast ions
File(s)
Accepted version
Author(s)
Appelbe, B
Sherlock, M
El-Amiri, O
Walsh, C
Chittenden, J
Type
Journal Article
Abstract
A Fokker-Planck model for the interaction of fast ions with the thermal electrons in a quasineutral plasma is developed. When the fast ion population has a net flux (i.e., the distribution of fast ions is anisotropic in velocity space), the electron distribution function is perturbed from Maxwellian by collisions with the fast ions, even if the fast ion density is orders of magnitude smaller than the electron density. The Fokker-Planck model is used to derive classical electron transport equations (a generalized Ohm's law and a heat flow equation) that include the effects of the electron-fast ion collisions. It is found that these collisions result in a collisionally induced current term in the transport equations which can be significant. The new transport equations are analyzed in the context of a number of scenarios including α particle heating in inertial confinement fusion and magnetoinertial fusion plasmas as well as ion beam heating of dense plasmas.
Date Issued
2019-10
Date Acceptance
2019-09-14
Citation
Physics of Plasmas, 2019, 26 (10), pp.102704-1-102704-12
ISSN
1070-664X
Publisher
AIP Publishing
Start Page
102704-1
End Page
102704-12
Journal / Book Title
Physics of Plasmas
Volume
26
Issue
10
Copyright Statement
© 2019 Author(s). This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in [citation of article] and may be found at https://doi.org/10.1063/1.5114794
Sponsor
Engineering & Physical Science Research Council (EPSRC)
AWE Plc
Identifier
https://aip.scitation.org/doi/10.1063/1.5114794
Grant Number
EP/P010288/1
300115146/1
Subjects
physics.plasm-ph
physics.plasm-ph
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0203 Classical Physics
Fluids & Plasmas
Publication Status
Published
Date Publish Online
2019-10-11