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Analysis of RF and neutral beam heating and current drive in Tokamaks

Conference:

Abstract

Synergy during simultaneous injection of Lower Hybrid Waves and Fast Waves/Ion Bernstein Waves is studied throughout a 2-D Fokker-Planck code. It is shown that the linear regime holds for both IBW and FW at realistic value of the wave power flux. Synergistic effects are found only for FW and IBW power flux much larger than the LH power flux. Neutral Beam current drive and deposition for a model elliptic equilibrium is investigated, including multi-step ionization and beam particle self-interaction process. A parameter scan is performed for ITER. The largest value for the current drive figure of merit is obtained at the largest beam energy. The propagation of LH waves is investigated analytically and numerically for realistic ITER equilibria. The dependence of wave penetration on elongation and triangularity is discussed.
Publication Date:
Dec 31, 1992
Product Type:
Conference
Report Number:
ETDE-IT-93-28; CONF-9209290-1
Reference Number:
SCA: 700350; 700460; PA: ITAN-93:000074; SN: 93000925455
Resource Relation:
Conference: 14. international conference on plasma physics and controlled nuclear fusion research,Wurzburg (Germany),30 Sep - 7 Oct 1992; Other Information: PBD: 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ITER TOKAMAK; LOWER HYBRID HEATING; WAVE PROPAGATION; BERNSTEIN MODE; ION WAVES; PARAMETRIC ANALYSIS; NEUTRAL BEAM SOURCES; FOKKER-PLANCK EQUATION; IONIZATION; 700350; 700460; PLASMA PRODUCTION, HEATING, CURRENT DRIVE, AND INTERACTIONS; HEATING AND FUELING SYSTEMS; FUELS
OSTI ID:
10118497
Research Organizations:
ENEA, Frascati (Italy). Centro Ricerche Energia
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Other: ON: DE93758941; TRN: 93:000074
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
ITAN
Size:
7 p.
Announcement Date:
Jun 30, 2005

Conference:

Citation Formats

Barbato, E, Cheng, C Z, Spaziani, A, Cardinali, A, and Romanelli, F. Analysis of RF and neutral beam heating and current drive in Tokamaks. Italy: N. p., 1992. Web.
Barbato, E, Cheng, C Z, Spaziani, A, Cardinali, A, & Romanelli, F. Analysis of RF and neutral beam heating and current drive in Tokamaks. Italy.
Barbato, E, Cheng, C Z, Spaziani, A, Cardinali, A, and Romanelli, F. 1992. "Analysis of RF and neutral beam heating and current drive in Tokamaks." Italy.
@misc{etde_10118497,
title = {Analysis of RF and neutral beam heating and current drive in Tokamaks}
author = {Barbato, E, Cheng, C Z, Spaziani, A, Cardinali, A, and Romanelli, F}
abstractNote = {Synergy during simultaneous injection of Lower Hybrid Waves and Fast Waves/Ion Bernstein Waves is studied throughout a 2-D Fokker-Planck code. It is shown that the linear regime holds for both IBW and FW at realistic value of the wave power flux. Synergistic effects are found only for FW and IBW power flux much larger than the LH power flux. Neutral Beam current drive and deposition for a model elliptic equilibrium is investigated, including multi-step ionization and beam particle self-interaction process. A parameter scan is performed for ITER. The largest value for the current drive figure of merit is obtained at the largest beam energy. The propagation of LH waves is investigated analytically and numerically for realistic ITER equilibria. The dependence of wave penetration on elongation and triangularity is discussed.}
place = {Italy}
year = {1992}
month = {Dec}
}