Session KP01 - Poster Session III.
POSTER session, Tuesday afternoon, March 23
Exhibit Hall, GWCC
A short-pulsed reflectometry system is being deployed on the Sustained Spheromak Physics Experiment (SSPX) at LLNL. Detailed computational modeling is presented addressing the use of pulsed reflectometry to reconstruct electron density and mod-B magnetic field profiles, and the use of linear mode conversion from extraordinary to ordinary modes induced by magnetic shear to infer the magnetic pitch-angle profile. The robustness of these diagnostics in the presence of plasma fluctuations is a key issue. Two-dimensional effects, e.g., microwave beam spreading and scattering and refraction due to plasma inhomogeneities are investigated. Data analysis techniques for use in both the simulations and SSPX are presented.