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Title: Transport in Auxiliary Heated NSTX Discharges

Abstract

The NSTX spherical torus (ST) provides a unique platform to investigate magnetic confinement in auxiliary-heated plasmas at low aspect ratio. Auxiliary power is routinely coupled to ohmically heated plasmas by deuterium neutral-beam injection (NBI) and by high-harmonic fast waves (HHFW) launch. While theory predicts both techniques to preferentially heat electrons, experiment reveals the electron temperature is greater than the ion temperature during HHFW, but the electron temperature is less than the ion temperature during NBI. In the following we present the experimental data and the results of transport analyses.

Authors:
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Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
814704
Report Number(s):
PPPL-3837
TRN: US0304321
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 10 Jul 2003
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ASPECT RATIO; DEUTERIUM; ELECTRON TEMPERATURE; ELECTRONS; ION TEMPERATURE; MAGNETIC CONFINEMENT; TRANSPORT; NEUTRAL BEAMS; TRANSPORT COEFFICIENTS; HHFW; NSTX

Citation Formats

B.P. LeBlanc, M.G. Bell, R.E. Bell, M.L. Bitte, C. Bourdelle, D.A. Gates, S.M. Kaye, R. Maingi, J.E. Menard, D. Mueller, , M. Ono, S.F. Paul, M.H. Redi, A.L. Roquemore, A. Rosenberg, S.A. Sabbagh, D. Stutman, E.J. Synakowski, V.A. Soukhanovskii, and J.R.Wilson. Transport in Auxiliary Heated NSTX Discharges. United States: N. p., 2003. Web. doi:10.2172/814704.
B.P. LeBlanc, M.G. Bell, R.E. Bell, M.L. Bitte, C. Bourdelle, D.A. Gates, S.M. Kaye, R. Maingi, J.E. Menard, D. Mueller, , M. Ono, S.F. Paul, M.H. Redi, A.L. Roquemore, A. Rosenberg, S.A. Sabbagh, D. Stutman, E.J. Synakowski, V.A. Soukhanovskii, & J.R.Wilson. Transport in Auxiliary Heated NSTX Discharges. United States. doi:10.2172/814704.
B.P. LeBlanc, M.G. Bell, R.E. Bell, M.L. Bitte, C. Bourdelle, D.A. Gates, S.M. Kaye, R. Maingi, J.E. Menard, D. Mueller, , M. Ono, S.F. Paul, M.H. Redi, A.L. Roquemore, A. Rosenberg, S.A. Sabbagh, D. Stutman, E.J. Synakowski, V.A. Soukhanovskii, and J.R.Wilson. Thu . "Transport in Auxiliary Heated NSTX Discharges". United States. doi:10.2172/814704. https://www.osti.gov/servlets/purl/814704.
@article{osti_814704,
title = {Transport in Auxiliary Heated NSTX Discharges},
author = {B.P. LeBlanc and M.G. Bell and R.E. Bell and M.L. Bitte and C. Bourdelle and D.A. Gates and S.M. Kaye and R. Maingi and J.E. Menard and D. Mueller and and M. Ono and S.F. Paul and M.H. Redi and A.L. Roquemore and A. Rosenberg and S.A. Sabbagh and D. Stutman and E.J. Synakowski and V.A. Soukhanovskii and J.R.Wilson},
abstractNote = {The NSTX spherical torus (ST) provides a unique platform to investigate magnetic confinement in auxiliary-heated plasmas at low aspect ratio. Auxiliary power is routinely coupled to ohmically heated plasmas by deuterium neutral-beam injection (NBI) and by high-harmonic fast waves (HHFW) launch. While theory predicts both techniques to preferentially heat electrons, experiment reveals the electron temperature is greater than the ion temperature during HHFW, but the electron temperature is less than the ion temperature during NBI. In the following we present the experimental data and the results of transport analyses.},
doi = {10.2172/814704},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 10 00:00:00 EDT 2003},
month = {Thu Jul 10 00:00:00 EDT 2003}
}

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