A tutorial on radio frequency sheath physics for magnetically confined fusion devices

Myra, J. R.

doi:10.1017/s0022377821000878

A tutorial on radio frequency sheath physics for magnetically confined fusion devices

Journal Article · Wed Sep 22 04:00:00 EDT 2021 · Journal of Plasma Physics

DOI:https://doi.org/10.1017/s0022377821000878· OSTI ID:1821706

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Lodestar Research Corporation, Boulder, CO (United States); Lodestar Research Corporation

Radio frequency (RF) sheaths occur under a wide variety of conditions when RF waves, material surfaces and plasma coexist. RF sheaths are of special importance in describing the interaction of ion cyclotron range of frequency (ICRF) waves with the boundary plasma in tokamaks, stellarators and other magnetic confinement devices. In this article the basic physics of RF sheaths is discussed in the context of magnetic fusion research. Techniques for modelling RF sheaths, their interaction with RF wave fields and the resulting consequences are highlighted. The article is intended as a guide for the early-career ICRF researcher, but it may equally well serve to provide an overview of basic RF sheath concepts and modelling directions for any interested fusion scientist.

View Accepted Manuscript (DOE)

Research Organization:: Lodestar Research Corporation, Boulder, CO (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC05-00OR22725; FG02-97ER54392

OSTI ID:: 1821706

Report Number(s):: LRC--21-187; ORNL/--4000158507-7

Journal Information:: Journal of Plasma Physics, Journal Name: Journal of Plasma Physics Journal Issue: 5 Vol. 87; ISSN 0022-3778

Publisher:: Cambridge University PressCopyright Statement

Country of Publication:: United States

Language:: English

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY
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plasma sheaths
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A tutorial on radio frequency sheath physics for magnetically confined fusion devices

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