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DC Field | Value | Language |
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dc.citation.number | 9 | - |
dc.citation.startPage | 092504 | - |
dc.citation.title | PHYSICS OF PLASMAS | - |
dc.citation.volume | 20 | - |
dc.contributor.author | Ferron, J. R. | - |
dc.contributor.author | Holcomb, C. T. | - |
dc.contributor.author | Luce, T. C. | - |
dc.contributor.author | Park, J. M. | - |
dc.contributor.author | Politzer, P. A. | - |
dc.contributor.author | Turco, F. | - |
dc.contributor.author | Heidbrink, W. W. | - |
dc.contributor.author | Doyle, E. J. | - |
dc.contributor.author | Hanson, J. M. | - |
dc.contributor.author | Hyatt, A. W. | - |
dc.contributor.author | In, Yongkyoon | - |
dc.contributor.author | La Haye, R. J. | - |
dc.contributor.author | Lanctot, M. J. | - |
dc.contributor.author | Okabayashi, M. | - |
dc.contributor.author | Petrie, T. W. | - |
dc.contributor.author | Petty, C. C. | - |
dc.contributor.author | Zeng, L. | - |
dc.date.accessioned | 2023-12-22T03:37:28Z | - |
dc.date.available | 2023-12-22T03:37:28Z | - |
dc.date.created | 2018-03-05 | - |
dc.date.issued | 2013-09 | - |
dc.description.abstract | The initial experiments on off-axis neutral beam injection into high noninductive current fraction (f(NI)), high normalized pressure (beta(N)) discharges in DIII-D [J. L. Luxon, Fusion Sci. Technol. 48, 828 (2005)] have demonstrated changes in the plasma profiles that increase the limits to plasma pressure from ideal low-n instabilities. The current profile is broadened and the minimum value of the safety factor (q(min)) can be maintained above 2 where the profile of the thermal component of the plasma pressure is found to be broader. The off-axis neutral beam injection results in a broadening of the fast-ion pressure profile. Confinement of the thermal component of the plasma is consistent with the IPB98(y,2) scaling, but global confinement with q(min) > 2 is below the ITER-89P scaling, apparently as a result of enhanced transport of fast ions. A 0-D model is used to examine the parameter space for f(NI) = 1 operation and project the requirements for high performance steady-state discharges. Fully noninductive solutions are found with 4 < beta(N) < 5 and bootstrap current fraction near 0.5 for a weak shear safety factor profile. A 1-D model is used to show that a f(NI) = 1 discharge at the top of this range of beta(N) that is predicted stable to n = 1, 2, and 3 ideal MHD instabilities is accessible through further broadening of the current and pressure profiles with off-axis neutral beam injection and electron cyclotron current drive. | - |
dc.identifier.bibliographicCitation | PHYSICS OF PLASMAS, v.20, no.9, pp.092504 | - |
dc.identifier.doi | 10.1063/1.4821072 | - |
dc.identifier.issn | 1070-664X | - |
dc.identifier.scopusid | 2-s2.0-84885067065 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23757 | - |
dc.identifier.url | http://aip.scitation.org/doi/10.1063/1.4821072 | - |
dc.identifier.wosid | 000325399400042 | - |
dc.language | 영어 | - |
dc.publisher | AMER INST PHYSICS | - |
dc.title | Progress toward fully noninductive discharge operation in DIII-D using off-axis neutral beam injection | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ADVANCED TOKAMAK | - |
dc.subject.keywordPlus | HIGH-BETA | - |
dc.subject.keywordPlus | MHD STABILITY | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | CONFINEMENT | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | EQUILIBRIA | - |
dc.subject.keywordPlus | PLASMAS | - |
dc.subject.keywordPlus | PROFILE | - |
dc.subject.keywordPlus | SHEAR | - |
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