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

Abstract

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.

Authors:
ORCiD logo [1]
  1. Lodestar Research Corporation, Boulder, CO (United States)
Publication Date:
Research Org.:
Lodestar Research Corp., Boulder, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1368368
Alternate Identifier(s):
OSTI ID: 1368600
Report Number(s):
DOE-ER/-54823-19; LRC-17-170
Journal ID: ISSN 1070-664X
Grant/Contract Number:  
FC02-05ER54823; FG02-97ER54392
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 7; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; radio-frequency; sheath; impedance; rectification; magnetized; ICRF; tokamak

Citation Formats

Myra, J. R. Physics-based parametrization of the surface impedance for radio frequency sheaths. United States: N. p., 2017. Web. doi:10.1063/1.4990373.
Myra, J. R. Physics-based parametrization of the surface impedance for radio frequency sheaths. United States. https://doi.org/10.1063/1.4990373
Myra, J. R. Fri . "Physics-based parametrization of the surface impedance for radio frequency sheaths". United States. https://doi.org/10.1063/1.4990373. https://www.osti.gov/servlets/purl/1368368.
@article{osti_1368368,
title = {Physics-based parametrization of the surface impedance for radio frequency sheaths},
author = {Myra, J. R.},
abstractNote = {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.},
doi = {10.1063/1.4990373},
url = {https://www.osti.gov/biblio/1368368}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 7,
volume = 24,
place = {United States},
year = {2017},
month = {7}
}

Works referenced in this record:

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Radio-frequency sheaths physics: Experimental characterization on Tore Supra and related self-consistent modeling
journal, June 2014


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Power deposition in high‐density inductively coupled plasma tools for semiconductor processing
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Quantitative modeling of ICRF antennas with integrated time domain RF sheath and plasma physics
conference, January 2014

  • Smithe, David N.; D'Ippolito, Daniel A.; Myra, James R.
  • RADIOFREQUENCY POWER IN PLASMAS: Proceedings of the 20th Topical Conference, AIP Conference Proceedings
  • https://doi.org/10.1063/1.4864506

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journal, June 2016


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journal, June 1993


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journal, December 2012


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journal, January 2017


The interaction between waves in the ion cyclotron range of frequencies and the plasma boundary
journal, November 1993


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journal, August 2013


Numerical analysis of radio-frequency sheath-plasma interactions in the ion cyclotron range of frequencies
journal, January 2012


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journal, October 2006


Connection coefficients for cold plasma wave propagation near metallic surfaces
journal, March 2013


Physics-Based Parametrization Of The Surface Impedance For Radio Frequency Sheaths [Supplemental Data]
dataset, April 2017


Physics-Based Parametrization Of The Surface Impedance For Radio Frequency Sheaths [Supplemental Data]
dataset, April 2017


ICRF-enhanced plasma potentials in the SOL of Alcator C-Mod
conference, January 2014

  • Ochoukov, R.; Whyte, D. G.; Brunner, D.
  • RADIOFREQUENCY POWER IN PLASMAS: Proceedings of the 20th Topical Conference, AIP Conference Proceedings
  • https://doi.org/10.1063/1.4864539

    Works referencing / citing this record:

    Physics-Based Parametrization Of The Surface Impedance For Radio Frequency Sheaths [Supplemental Data]
    dataset, April 2017


    Collisional RF sheath in capacitive discharge in strong oblique magnetic field
    journal, January 2019


    Numerical model of the radio-frequency magnetic presheath including wall impurities
    journal, September 2019


    Calculation of RF sheath properties from surface wave-fields: a post-processing method
    journal, July 2019