Kinetic effects in parallel electron energy transport channels in the scrape-off layer
File(s)Mijin_2020_Plasma_Phys._Control._Fusion_62_125009.pdf (873.25 KB)
Published version
OA Location
Author(s)
Mijin, S
Militello, F
Newton, S
Omotani, J
Kingham, RJ
Type
Journal Article
Abstract
We present an analysis of parallel electron energy transport in the scrape-off layer (SOL), considering the convective and conductive channels, as well as the radiation and neutral inelastic energy transfer channels involving atomic deuterium. Kinetic effects in both equilibria and conductive transients are explored by utilizing the capability of the SOL-KiT code to treat electrons as either a fluid or kinetically. We find kinetic effects in multiple channels, with an emphasis on those occurring during the investigated conductive transients. Energetic electron effects in the heat flux, as well as a modification of ionization rates of up to 40% compared to Maxwellian rates during perturbations in detached conditions, are reported and discussed.
Date Issued
2020-12-01
Date Acceptance
2020-10-06
Citation
Plasma Physics and Controlled Fusion, 2020, 62 (12), pp.125009-125009
ISSN
0741-3335
Publisher
IOP Publishing
Start Page
125009
End Page
125009
Journal / Book Title
Plasma Physics and Controlled Fusion
Volume
62
Issue
12
Copyright Statement
© 2020 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
License URL
Sponsor
Imperial College London
Identifier
https://iopscience.iop.org/article/10.1088/1361-6587/abbec0
Grant Number
STU0207451
Subjects
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0299 Other Physical Sciences
Fluids & Plasmas
Publication Status
Published
Date Publish Online
2020-10-27