Experimentally determined profiles of fast wave current drive on DIII-D

Conference · Thu Jun 01 00:00:00 EDT 1995

OSTI ID:88471

Forest, C B; Petty, C C ^[1]; Baity, F W ^[2]

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1. General Atomics, San Diego, CA (United States)
2. Oak Ridge National Lab., TN (United States); and others

Profiles of non-inductive current driven by fast waves have been determined for reversed-shear DIII-D discharges. Both the current profile and toroidal electric field profile are determined from time sequences of equilibrium reconstructions. Using this information, the measured current profile has been separated into inductive and non-inductive portions. By comparing similar fast wave power, the portion of the total non-inductive current driven by fast waves were determined. The experimentally determined profiles of FWCD are in general agreement with theoretical predictions. Specifically, 135 kA was driven by 1.4 MW of rf power with a profile peaked inside {rho} = 2.

• Research Organization: General Atomics, San Diego, CA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-89ER51114; AC05-84OR21400; W-7405-ENG-48
• OSTI ID: 88471
• Report Number(s): GA-A-22048; CONF-9505105-3; ON: DE95015359; TRN: 95:017801
• Resource Relation: Conference: 11. topical conference on radio frequency in plasmas, Palm Springs, CA (United States), 17-19 May 1995; Other Information: PBD: Jun 1995
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
DOUBLET-3 DEVICE
NON-INDUCTIVE CURRENT DRIVE
CURRENT DENSITY
NEUTRAL ATOM BEAM INJECTION
PERFORMANCE