Electron Bernstein wave research on the national spherical torus experiment

G. Taylor; A. Bers; T. S. Bigelow; M. D. Carter; J. B. Caughman; J. Decker; S. Diem; P. C. Efthimion; N. M. Ershov; E. Fredd; R. W. Harvey; J. Hosea; F. Jaeger; J. Preinhaelter; A. K. Ram; D. A. Rasmussen; A. P. Smirnov; J. B. Wilgen; J. R. Wilson

doi:10.1063/1.2098252

Electron Bernstein wave research on the national spherical torus experiment

G. Taylor, A. Bers, T. S. Bigelow, M. D. Carter, J. B. Caughman, J. Decker, S. Diem, P. C. Efthimion, N. M. Ershov, E. Fredd, R. W. Harvey, J. Hosea, F. Jaeger, J. Preinhaelter, A. K. Ram, D. A. Rasmussen, A. P. Smirnov, J. B. Wilgen, J. R. Wilson

Plasma Physics Lab

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Off-axis electron Bernstein wave current drive (EBWCD) may be critical for sustaining non-inductive high β NSTX plasmas. Modeling results predict that the ∼ 100 kA of off-axis current needed to stabilize a solenoid-free high β NSTX plasma could be generated by by 3 MW of 28 GHz EBW power. Synergy with the bootstrap current may enhance CD efficiency by ∼ 10%. EBW radiometry measurements on NSTX support coupling to EBWs by launching elliptically polarized electromagnetic waves oblique to the confining magnetic field. Plans are being developed to implement a 1 MW, 28 GHz proof-of-principle EBWCD system to test the EBW coupling, heating and CD physics at high rf power densities on NSTX.

Original language	English (US)
Title of host publication	RADIO FREQUENCY POWER IN PLASMAS
Subtitle of host publication	16th Topical Conference on Radio Frequency Power in Plasmas
Pages	337-340
Number of pages	4
DOIs	https://doi.org/10.1063/1.2098252
State	Published - Sep 26 2005
Event	RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas - Park City, UT, United States Duration: Apr 11 2005 → Apr 13 2005

Publication series

Name	AIP Conference Proceedings
Volume	787
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas
Country/Territory	United States
City	Park City, UT
Period	4/11/05 → 4/13/05

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Keywords

Electron Bernstein waves
Spherical tokamaks

Access to Document

10.1063/1.2098252

Cite this

Taylor, G., Bers, A., Bigelow, T. S., Carter, M. D., Caughman, J. B., Decker, J., Diem, S., Efthimion, P. C., Ershov, N. M., Fredd, E., Harvey, R. W., Hosea, J., Jaeger, F., Preinhaelter, J., Ram, A. K., Rasmussen, D. A., Smirnov, A. P., Wilgen, J. B., & Wilson, J. R. (2005). Electron Bernstein wave research on the national spherical torus experiment. In RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas (pp. 337-340). (AIP Conference Proceedings; Vol. 787). https://doi.org/10.1063/1.2098252

@inproceedings{f0259879841244e2a9516e1d14d8d8cd,

title = "Electron Bernstein wave research on the national spherical torus experiment",

abstract = "Off-axis electron Bernstein wave current drive (EBWCD) may be critical for sustaining non-inductive high β NSTX plasmas. Modeling results predict that the ∼ 100 kA of off-axis current needed to stabilize a solenoid-free high β NSTX plasma could be generated by by 3 MW of 28 GHz EBW power. Synergy with the bootstrap current may enhance CD efficiency by ∼ 10\%. EBW radiometry measurements on NSTX support coupling to EBWs by launching elliptically polarized electromagnetic waves oblique to the confining magnetic field. Plans are being developed to implement a 1 MW, 28 GHz proof-of-principle EBWCD system to test the EBW coupling, heating and CD physics at high rf power densities on NSTX.",

keywords = "Electron Bernstein waves, Spherical tokamaks",

author = "G. Taylor and A. Bers and Bigelow, \{T. S.\} and Carter, \{M. D.\} and Caughman, \{J. B.\} and J. Decker and S. Diem and Efthimion, \{P. C.\} and Ershov, \{N. M.\} and E. Fredd and Harvey, \{R. W.\} and J. Hosea and F. Jaeger and J. Preinhaelter and Ram, \{A. K.\} and Rasmussen, \{D. A.\} and Smirnov, \{A. P.\} and Wilgen, \{J. B.\} and Wilson, \{J. R.\}",

year = "2005",

month = sep,

day = "26",

doi = "10.1063/1.2098252",

language = "English (US)",

isbn = "0735402760",

series = "AIP Conference Proceedings",

pages = "337--340",

booktitle = "RADIO FREQUENCY POWER IN PLASMAS",

note = "RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas ; Conference date: 11-04-2005 Through 13-04-2005",

}

Taylor, G, Bers, A, Bigelow, TS, Carter, MD, Caughman, JB, Decker, J, Diem, S, Efthimion, PC, Ershov, NM, Fredd, E, Harvey, RW, Hosea, J, Jaeger, F, Preinhaelter, J, Ram, AK, Rasmussen, DA, Smirnov, AP, Wilgen, JB & Wilson, JR 2005, Electron Bernstein wave research on the national spherical torus experiment. in RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas. AIP Conference Proceedings, vol. 787, pp. 337-340, RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas, Park City, UT, United States, 4/11/05. https://doi.org/10.1063/1.2098252

TY - GEN

T1 - Electron Bernstein wave research on the national spherical torus experiment

AU - Taylor, G.

AU - Bers, A.

AU - Bigelow, T. S.

AU - Carter, M. D.

AU - Caughman, J. B.

AU - Decker, J.

AU - Diem, S.

AU - Efthimion, P. C.

AU - Ershov, N. M.

AU - Fredd, E.

AU - Harvey, R. W.

AU - Hosea, J.

AU - Jaeger, F.

AU - Preinhaelter, J.

AU - Ram, A. K.

AU - Rasmussen, D. A.

AU - Smirnov, A. P.

AU - Wilgen, J. B.

AU - Wilson, J. R.

PY - 2005/9/26

Y1 - 2005/9/26

N2 - Off-axis electron Bernstein wave current drive (EBWCD) may be critical for sustaining non-inductive high β NSTX plasmas. Modeling results predict that the ∼ 100 kA of off-axis current needed to stabilize a solenoid-free high β NSTX plasma could be generated by by 3 MW of 28 GHz EBW power. Synergy with the bootstrap current may enhance CD efficiency by ∼ 10%. EBW radiometry measurements on NSTX support coupling to EBWs by launching elliptically polarized electromagnetic waves oblique to the confining magnetic field. Plans are being developed to implement a 1 MW, 28 GHz proof-of-principle EBWCD system to test the EBW coupling, heating and CD physics at high rf power densities on NSTX.

AB - Off-axis electron Bernstein wave current drive (EBWCD) may be critical for sustaining non-inductive high β NSTX plasmas. Modeling results predict that the ∼ 100 kA of off-axis current needed to stabilize a solenoid-free high β NSTX plasma could be generated by by 3 MW of 28 GHz EBW power. Synergy with the bootstrap current may enhance CD efficiency by ∼ 10%. EBW radiometry measurements on NSTX support coupling to EBWs by launching elliptically polarized electromagnetic waves oblique to the confining magnetic field. Plans are being developed to implement a 1 MW, 28 GHz proof-of-principle EBWCD system to test the EBW coupling, heating and CD physics at high rf power densities on NSTX.

KW - Electron Bernstein waves

KW - Spherical tokamaks

UR - https://www.scopus.com/pages/publications/33749669019

UR - https://www.scopus.com/inward/citedby.url?scp=33749669019&partnerID=8YFLogxK

U2 - 10.1063/1.2098252

DO - 10.1063/1.2098252

M3 - Conference contribution

AN - SCOPUS:33749669019

SN - 0735402760

SN - 9780735402768

T3 - AIP Conference Proceedings

SP - 337

EP - 340

BT - RADIO FREQUENCY POWER IN PLASMAS

T2 - RADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas

Y2 - 11 April 2005 through 13 April 2005

ER -

Electron Bernstein wave research on the national spherical torus experiment

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Keywords

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