Helicon normal modes in Proto-MPEX
Abstract
Here, the Proto-MPEX helicon source has been operating in a high electron density 'helicon-mode'. Establishing plasma densities and magnetic field strengths under the antenna that allow for the formation of normal modes of the fast-wave are believed to be responsible for the 'helicon-mode'. A 2D finite-element full-wave model of the helicon antenna on Proto-MPEX is used to identify the fast-wave normal modes responsible for the steady-state electron density profile produced by the source. We also show through the simulation that in the regions of operation in which core power deposition is maximum the slow-wave does not deposit significant power besides directly under the antenna. In the case of a simulation where a normal mode is not excited significant edge power is deposited in the mirror region.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Illinois Urbana-Champaign, Urbana, IL (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Illinois Urbana-Champaign, Urbana, IL (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1456809
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Plasma Sources Science and Technology
- Additional Journal Information:
- Journal Volume: 27; Journal Issue: 5; Journal ID: ISSN 1361-6595
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MPEX; plasma source; plasma waves; helicon source; full wave simulation; deuterium
Citation Formats
Piotrowicz, Pawel A., Caneses, Juan F., Green, David L., Goulding, Richard Howell, Lau, Cornwall H., Caughman, John B. O., Rapp, Juergen, and Ruzic, David N. Helicon normal modes in Proto-MPEX. United States: N. p., 2018.
Web. doi:10.1088/1361-6595/aabd62.
Piotrowicz, Pawel A., Caneses, Juan F., Green, David L., Goulding, Richard Howell, Lau, Cornwall H., Caughman, John B. O., Rapp, Juergen, & Ruzic, David N. Helicon normal modes in Proto-MPEX. United States. https://doi.org/10.1088/1361-6595/aabd62
Piotrowicz, Pawel A., Caneses, Juan F., Green, David L., Goulding, Richard Howell, Lau, Cornwall H., Caughman, John B. O., Rapp, Juergen, and Ruzic, David N. Tue .
"Helicon normal modes in Proto-MPEX". United States. https://doi.org/10.1088/1361-6595/aabd62. https://www.osti.gov/servlets/purl/1456809.
@article{osti_1456809,
title = {Helicon normal modes in Proto-MPEX},
author = {Piotrowicz, Pawel A. and Caneses, Juan F. and Green, David L. and Goulding, Richard Howell and Lau, Cornwall H. and Caughman, John B. O. and Rapp, Juergen and Ruzic, David N.},
abstractNote = {Here, the Proto-MPEX helicon source has been operating in a high electron density 'helicon-mode'. Establishing plasma densities and magnetic field strengths under the antenna that allow for the formation of normal modes of the fast-wave are believed to be responsible for the 'helicon-mode'. A 2D finite-element full-wave model of the helicon antenna on Proto-MPEX is used to identify the fast-wave normal modes responsible for the steady-state electron density profile produced by the source. We also show through the simulation that in the regions of operation in which core power deposition is maximum the slow-wave does not deposit significant power besides directly under the antenna. In the case of a simulation where a normal mode is not excited significant edge power is deposited in the mirror region.},
doi = {10.1088/1361-6595/aabd62},
journal = {Plasma Sources Science and Technology},
number = 5,
volume = 27,
place = {United States},
year = {Tue May 22 00:00:00 EDT 2018},
month = {Tue May 22 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
Radial transport modeling of high density deuterium plasmas in proto-MPEX with the B2.5-Eirene code
journal, April 2019
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Radio-frequency wave interactions with a plasma sheath in oblique-angle magnetic fields using a sheath impedance model
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Computational investigation of ion cyclotron heating on Proto-MPEX
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- Physics of Plasmas, Vol. 26, Issue 3
Evidence of electron heating at different radial locations on Proto-MPEX
journal, March 2019
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Figures / Tables found in this record: