Physics-based parametrization of the surface impedance for radio frequency sheaths

Myra, J. R.

doi:10.1063/1.4990373

Title: Physics-based parametrization of the surface impedance for radio frequency sheaths

Journal Article · Fri Jul 07 00:00:00 EDT 2017 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4990373· OSTI ID:1368368

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Lodestar Research Corporation, Boulder, CO (United States)

The properties of sheaths near conducting surfaces are studied for the case where both magnetized plasma and intense radio frequency (rf) waves coexist. The work is motivated primarily by the need to understand, predict and control ion cyclotron range of frequency (ICRF) interactions with tokamak scrape-off layer plasmas, and is expected to be useful in modeling rf sheath interactions in global ICRF codes. Here, employing a previously developed model for oblique angle magnetized rf sheaths [J. R. Myra and D. A. D’Ippolito, Phys. Plasmas 22, 062507 (2015)], an investigation of the four-dimensional parameter space governing these sheath is carried out. By combining numerical and analytical results, a parametrization of the surface impedance and voltage rectification for rf sheaths in the entire four-dimensional space is obtained.

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Research Organization:: Lodestar Research Corp., Boulder, CO (United States)

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

Grant/Contract Number:: FC02-05ER54823; FG02-97ER54392

OSTI ID:: 1368368

Alternate ID(s):: OSTI ID: 1368600

Report Number(s):: DOE-ER/-54823-19; LRC-17-170

Journal Information:: Physics of Plasmas, Vol. 24, Issue 7; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 16 works

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Radio-frequency wave interactions with a plasma sheath in oblique-angle magnetic fields using a sheath impedance model Kohno, H.; Myra, J. R. Physics of Plasmas, Vol. 26, Issue 2 https://doi.org/10.1063/1.5054920	journal	February 2019
Radio frequency wave interactions with a plasma sheath: The role of wave and plasma sheath impedances Myra, J. R.; Kohno, H. Physics of Plasmas, Vol. 26, Issue 5 https://doi.org/10.1063/1.5088343	journal	May 2019
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Calculation of RF sheath properties from surface wave-fields: a post-processing method Myra, J. R.; Kohno, H. Plasma Physics and Controlled Fusion, Vol. 61, Issue 9 https://doi.org/10.1088/1361-6587/ab2f41	journal	July 2019
Radio-frequency wave interactions with a plasma sheath in oblique-angle magnetic fields using a sheath impedance model Kohno, H.; Myra, J. R. Zenodo https://doi.org/10.5281/zenodo.1405218	text	January 2018
Radio frequency wave interactions with a plasma sheath: the role of wave and plasma sheath impedances Myra, J. R.; Kohno, H. Zenodo https://doi.org/10.5281/zenodo.2284968	text	January 2018

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Title: Physics-based parametrization of the surface impedance for radio frequency sheaths

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