Simulations of NBI-ICRF synergy with the full-wave TORIC package

Journal Article · Thu Nov 26 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3273842· OSTI ID:21335818

Bilato, R; Brambilla, M; Horton, L D; Maggi, C F; Stober, J ^[1]

---

1. MPI fuer Plasmaphysik-Euratom Association Boltzmannstr. 2, D-85748 Garching (Germany)

During the combined plasma heating with neutral beam injection (NBI) and waves in the ion cyclotron (IC) range of frequencies, the NBI fast ions are preferentially accelerated by IC waves close to the IC harmonics, as a consequence of finite Larmor radius (FLR) effects. Since the NBI fast ions are expected to have a strong influence on the wave absorption and propagation, we have implemented a NBI source in the quasilinear Fokker-Planck SSFPQL code, interfaced with the toroidal full-wave TORIC solver. In this implementation the NBI ionization sources are obtained from the output of a Monte Carlo code, such as FAFNER. The numerical scheme adopted in the TORIC-SSFPQL package allows to describe very anisotropic sources, such as NBI, and to iterate the solution of Maxwell's equation taking into account selfconsistently the fast ion tails. As a first application, we present modeling of an ASDEX-Upgrade discharge with combined NBI and ICRF heating.

• OSTI ID: 21335818
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1187; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABSORPTION
ANISOTROPY
ASDEX TOKAMAK
BEAM INJECTION HEATING
COMPUTERIZED SIMULATION
FOKKER-PLANCK EQUATION
ICR HEATING
IONIZATION
IONS
LARMOR RADIUS
MAXWELL EQUATIONS
MONTE CARLO METHOD
NEUTRAL ATOM BEAM INJECTION
PLASMA
PLASMA SIMULATION
WAVEGUIDES