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Title Density profile modification during IBW in PBX-M
Creator/Author LeBlanc, B. ; Ono, M. ; Tighe, W. (PPPL, Princeton University, Princeton, New Jersey 08540 (United States)) ; Dunlap, J. (ORNL, Oak Ridge, Tennessee 37831 (United States)) ; Bell, R. ; Chu, T.K. (PPPL, Princeton University, Princeton, New Jersey 08540 (United States)) ; England, A. ; Isler, R. (ORNL, Oak Ridge, Tennessee 37831 (United States)) ; Kaye, S. ; McCune, D. ; Okabayashi, M. (PPPL, Princeton University, Princeton, New Jersey 08540 (United States)) ; Post-Zwicker, A. (ORNL, Oak Ridge, Tennessee 37831 (United States)) ; Takahashi, H. ; Sesnic, S. (PPPL, Princeton University, Princeton, New Jersey 08540 (United States))
Publication Date1994 Oct 15
OSTI IdentifierOSTI ID: 7159964
Report Number(s)CONF-9304112--
DOE Contract NumberAC02-76CH03073
Other Number(s)Journal ID: ISSN 0094-243X; CODEN: APCPCS
Resource TypeConference
Specific TypeJournal Article
Resource RelationJournal Name: AIP Conference Proceedings (American Institute of Physics); (United States); Journal Volume: 289:1; Conference: 10. topical conference on radio frequency power in plasmas, Boston, MA (United States), 1-3 Apr 1993
Subject70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ION PLASMA WAVES; BERNSTEIN MODE; PLASMA; ELECTRON DENSITY; BOOTSTRAP CURRENT; NEUTRAL ATOM BEAM INJECTION; PBX DEVICES; PLASMA HEATING; THERMAL DIFFUSIVITY; BEAM INJECTION; CLOSED PLASMA DEVICES; CURRENTS; ELECTRIC CURRENTS; HEATING; ION WAVES; OSCILLATION MODES; PHYSICAL PROPERTIES; PLASMA WAVES; THERMODYNAMIC PROPERTIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES
Description/AbstractApplication of IBW power to neutral beam heated PBX-M discharges was observed to progressively peak the electron density profile, inducing gradients in excess of 5[times]10[sup 12] cm[sup [minus]4] and central density up to 8[times]10[sup 13] cm[sup [minus]3]. Abated MHD activity occurred during the peaking phase. Core ion thermal diffusivity dropped during the same period to values neighboring 1 m[sup 2]/s. Induced large n[sub e] gradients were spatially correlated with the IBW deposition profile. Bootstrap current induced in mid minor radius region broadened the total current profile. Work supported by DOE contract no. DE-AC02-76-CH0-3073.
Country of PublicationUnited States
LanguageEnglish
FormatMedium: X; Size: Pages: 68-71
System Entry Date2008 Feb 12

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