Full-wave Simulations of LH wave propagation in toroidal plasma with non-Maxwellian electron distributions

Journal Article · Fri Sep 28 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2800497· OSTI ID:21032778

Valeo, E J; Phillips, C K ^[1]; Bonoli, P T; Wright, J C ^[2]; Brambilla, M ^[3]

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1. Plasma Physics Laboratory, Princeton University Princeton, NJ (United States)
2. Plasma Science Fusion Center, MIT Cambridge, MA (United States)
3. Max-Planck Institute fuer Plasmaphysik, Garching (Germany)

The generation of energetic tails in the electron distribution function is intrinsic to lower-hybrid (LH) heating and current drive in weakly collisional magnetically confined plasma. The effects of these deformations on the RF deposition profile have previously been examined within the ray approximation [1, 2]. Recently, the calculation of full-wave propagation of LH waves in a thermal plasma [3] has been accomplished using an adaptation of the TORIC [4] code. Here, initial results are presented from TORIC simulations of LH propagation in a toroidal plasma with non-thermal electrons. The required efficient computation of the hot plasma dielectric tensor is accomplished using a technique previously demonstrated in full-wave simulations of ICRF propagation in plasma with non-thermal ions [5].

• OSTI ID: 21032778
• Journal Information: AIP Conference Proceedings, Vol. 933, Issue 1; Conference: 17. topical conference on radio frequency power in plasmas, Clearwater, FL (United States), 7-9 May 2007; Other Information: DOI: 10.1063/1.2800497; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA). RF SciDAC Team; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
APPROXIMATIONS
COMPUTERIZED SIMULATION
DIELECTRIC TENSOR
DISTRIBUTION
DISTRIBUTION FUNCTIONS
ELECTRIC CURRENTS
ELECTRONS
ENERGY LOSSES
HOT PLASMA
ICR HEATING
ION CYCLOTRON-RESONANCE
IONS
LOWER HYBRID CURRENT DRIVE
LOWER HYBRID HEATING
PLASMA CONFINEMENT
PLASMA SIMULATION
RF SYSTEMS
T CODES
WAVE PROPAGATION