Fusion Antenna Analysis Using the Modular Oak Ridge RF Integration Code (MORRFIC)

Journal Article · Mon Sep 26 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2098228· OSTI ID:20726313

Carter, M D ^[1]; D'Ippolito, D A; Myra, J R; Russell, D A ^[2]

---

1. Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States)
2. Lodestar Research Corporation (United States)

Nonlinear and small scale effects occur in the RF near-field region of fusion antennas, including sheaths, ponderomotive effects, and gas build-up to self-generate plasma. Integrated modules in MORRFIC can estimate the importance of, and interplay between, these various effects. Modules include a linear RF Maxwell solver with plasma variations across and along field lines. Solutions from this module can be used to estimate ponderomotive effects, sheath driving terms, and collisional dissipation. Other modules can be iterated with these solutions to study plasma transport. Transport models include SOLT, which models the effect of RF fields on turbulent radial plasma transport, and a weakly-ionized two-dimensional model of collisional transport in RF self-generated plasma. The geometry allows azimuthally symmetric perfectly conducting boundary conditions and complex dielectrics, including a local plasma dielectric tensor. 3-D antenna structures can be modeled using Fourier analysis. A sheath mask is implemented to allow different non-linear sheath models to be included, and diagnostics are available to estimate non-linear effects.

• OSTI ID: 20726313
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 787; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTENNAS
BOUNDARY CONDITIONS
DIELECTRIC TENSOR
FOURIER ANALYSIS
GEOMETRY
HIGH-FREQUENCY HEATING
NONLINEAR PROBLEMS
OAK RIDGE
PLASMA
PLASMA SHEATH
PLASMA SIMULATION
PONDEROMOTIVE FORCE
RF SYSTEMS
TRANSPORT THEORY
TWO-DIMENSIONAL CALCULATIONS