Motional Stark effect plasma equilibria during LHCD experiments on PBX-M

Conference · Sat Oct 15 00:00:00 EDT 1994 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:7260979

Paoletti, F ^[1]; Batha, S ^[2]; Bernabei, S; Fishman, H; Hatcher, R ^[3]; Hirshman, S ^[4]; Ignat, D ^[3]; Jones, S ^[1]; Kaita, R; Kaye, S ^[3]; Kesner, J ^[5]; Kessel, C; LeBlanc, B ^[3]; Lee, D ^[4]

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1. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
2. Fusion Physics and Technology, Torrance, California 90503 (United States)
3. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
4. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
5. Massachusetts iInstitute of Technology, Cambridge, Massachusetts 02139 (United States)

The magnetic field pitch angle measurements from the multichannel Motional Stark Effect (MSE) polarimeter system, together with the external poloidal flux values, toroidal plasma current, coil currents, and plasma pressure profile, as computed by the TRANSP code, are used to constrain the numerical solution of the Grad-Shafranov equation. The experimental results from the soft x-ray diagnostic and hard x-ray bremsstrahlung radiation profiles show clear signatures of a change in the current density profile during Lower hybrid injection. Indications of a variation in the q-profile are supported by the behavior of the measured sawtooth inversion radius. Modifications in the current density profiles, induced by Lower Hybrid waves, are discussed in terms of their effect on q-profiles and volume-averaged quantities like I[sub i].

• DOE Contract Number: FG02-91ER54109; AC02-76CH03073; AC05-84OS21400
• OSTI ID: 7260979
• 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

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TOKAMAK DEVICES
LOWER HYBRID CURRENT DRIVE
COMPUTER CODES
CURRENT DENSITY
ELECTRIC DISCHARGES
EQUILIBRIUM PLASMA
GRAD-SHAFRANOV EQUATION
HARD X RADIATION
IMAGES
INCLINATION
MAGNETIC FIELDS
PBX DEVICES
PLASMA DIAGNOSTICS
POLARIMETRY
SOFT X RADIATION
STARK EFFECT
CLOSED PLASMA DEVICES
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
IONIZING RADIATIONS
NON-INDUCTIVE CURRENT DRIVE
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
RADIATIONS
THERMONUCLEAR DEVICES
X RADIATION
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)