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Title: Density profile modification during IBW in PBX-M

Conference · · AIP Conference Proceedings (American Institute of Physics); (United States)
OSTI ID:7159964
; ;  [1];  [2]; ;  [1]; ;  [2]; ; ;  [1];  [2]; ;  [1]
  1. PPPL, Princeton University, Princeton, New Jersey 08540 (United States)
  2. ORNL, Oak Ridge, Tennessee 37831 (United States)
+ Show Author Affiliations

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.

DOE Contract Number:
AC02-76CH03073
OSTI ID:
7159964
Report Number(s):
CONF-9304112-; CODEN: APCPCS
Journal Information:
AIP Conference Proceedings (American Institute of Physics); (United States), Vol. 289:1; Conference: 10. topical conference on radio frequency power in plasmas, Boston, MA (United States), 1-3 Apr 1993; ISSN 0094-243X
Country of Publication:
United States
Language:
English

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Related Subjects

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
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)
700340 - Plasma Waves
Oscillations
& Instabilities- (1992-)