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Application 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.
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| Authors: |
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))
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| Publication Date: | 1994 Oct 15 |
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| OSTI Identifier: | 7159964 |
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| Report Number(s): | CONF-9304112-- |
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| DOE Contract Number: | AC02-76CH03073 |
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| Resource Type: | Conference/Event |
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| Resource Relation: | Journal 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 |
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| Country of Publication: | United States |
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| Language: | English |
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| Format: | Size: Pages: 68-71 |
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| Other Number(s): | Journal ID: ISSN 0094-243X; CODEN: APCPCS |
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| Specific Type: | Journal Article |
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| Subject: | 70 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 |
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| Update Date: | 2008 Feb 12 |
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