Computational model for fast wave current drive
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451 (United States)
A {open_quote}{open_quote}Lower hybrid Simulation Code{close_quote}{close_quote}{sup 1} provides the dynamic transport computations TSC{sup 2} and TRANSP{sup 3} with a common model for lower hybrid current drive based on multiple ray tracing, quasilinear absorption of power, and an estimate of the effect of electric field through a parameterization due to Karney and Fisch.{sup 4} Treatment of fast wave current drive (FWCD) in the ion cyclotron range of frequencies has been added, while keeping the interface to TSC and TRANSP the same. Electron absorption from Landau damping, transit time magnetic pumping, and cross-terms yield a modified electron distribution from which current is computed. Cyclotron damping on harmonics of ion species is tracked in the power balance and reported to the governing transport code. Initial results of the stand-alone computation show quantitative issues associated with unwanted ion heating in the possible TFTR-extension; and suggest important toroidal effects for FWCD in the NSTX-the National Spherical Tokamak Experiment. {copyright} {ital 1996 American Institute of Physics.}
- Research Organization:
- Princeton Plasma Physics Laboratory
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 285251
- Report Number(s):
- CONF-9505105--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 355; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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