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Title: A high performance field-reversed configuration

Abstract

Conventional field-reversed configurations (FRCs), high-beta, prolate compact toroids embedded in poloidal magnetic fields, face notable stability and confinement concerns. These can be ameliorated by various control techniques, such as introducing a significant fast ion population. Indeed, adding neutral beam injection into the FRC over the past half-decade has contributed to striking improvements in confinement and stability. Further, the addition of electrically biased plasma guns at the ends, magnetic end plugs, and advanced surface conditioning led to dramatic reductions in turbulence-driven losses and greatly improved stability. Together, these enabled the build-up of a well-confined and dominant fast-ion population. Under such conditions, highly reproducible, macroscopically stable hot FRCs (with total plasma temperature of ∼1 keV) with record lifetimes were achieved. These accomplishments point to the prospect of advanced, beam-driven FRCs as an intriguing path toward fusion reactors. This paper reviews key results and presents context for further interpretation.

Authors:
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  1. Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688 (United States)
Publication Date:
OSTI Identifier:
22410390
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAM INJECTION; ELECTRON TEMPERATURE; FIELD-REVERSED THETA PINCH DEVICES; HIGH-BETA PLASMA; ION TEMPERATURE; IONS; KEV RANGE; MAGNETIC FIELDS; PLASMA CONFINEMENT; PLASMA GUNS; STABILITY; TURBULENCE

Citation Formats

Binderbauer, M. W., Tajima, T., Steinhauer, L. C., Garate, E., Tuszewski, M., Smirnov, A., Gota, H., Barnes, D., Deng, B. H., Thompson, M. C., Trask, E., Yang, X., Putvinski, S., Rostoker, N., Andow, R., Aefsky, S., Bolte, N., Bui, D. Q., Ceccherini, F., Clary, R., and and others. A high performance field-reversed configuration. United States: N. p., 2015. Web. doi:10.1063/1.4920950.
Binderbauer, M. W., Tajima, T., Steinhauer, L. C., Garate, E., Tuszewski, M., Smirnov, A., Gota, H., Barnes, D., Deng, B. H., Thompson, M. C., Trask, E., Yang, X., Putvinski, S., Rostoker, N., Andow, R., Aefsky, S., Bolte, N., Bui, D. Q., Ceccherini, F., Clary, R., & and others. A high performance field-reversed configuration. United States. doi:10.1063/1.4920950.
Binderbauer, M. W., Tajima, T., Steinhauer, L. C., Garate, E., Tuszewski, M., Smirnov, A., Gota, H., Barnes, D., Deng, B. H., Thompson, M. C., Trask, E., Yang, X., Putvinski, S., Rostoker, N., Andow, R., Aefsky, S., Bolte, N., Bui, D. Q., Ceccherini, F., Clary, R., and and others. Fri . "A high performance field-reversed configuration". United States. doi:10.1063/1.4920950.
@article{osti_22410390,
title = {A high performance field-reversed configuration},
author = {Binderbauer, M. W. and Tajima, T. and Steinhauer, L. C. and Garate, E. and Tuszewski, M. and Smirnov, A. and Gota, H. and Barnes, D. and Deng, B. H. and Thompson, M. C. and Trask, E. and Yang, X. and Putvinski, S. and Rostoker, N. and Andow, R. and Aefsky, S. and Bolte, N. and Bui, D. Q. and Ceccherini, F. and Clary, R. and and others},
abstractNote = {Conventional field-reversed configurations (FRCs), high-beta, prolate compact toroids embedded in poloidal magnetic fields, face notable stability and confinement concerns. These can be ameliorated by various control techniques, such as introducing a significant fast ion population. Indeed, adding neutral beam injection into the FRC over the past half-decade has contributed to striking improvements in confinement and stability. Further, the addition of electrically biased plasma guns at the ends, magnetic end plugs, and advanced surface conditioning led to dramatic reductions in turbulence-driven losses and greatly improved stability. Together, these enabled the build-up of a well-confined and dominant fast-ion population. Under such conditions, highly reproducible, macroscopically stable hot FRCs (with total plasma temperature of ∼1 keV) with record lifetimes were achieved. These accomplishments point to the prospect of advanced, beam-driven FRCs as an intriguing path toward fusion reactors. This paper reviews key results and presents context for further interpretation.},
doi = {10.1063/1.4920950},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 5,
volume = 22,
place = {United States},
year = {2015},
month = {5}
}