Session GP1 - Poster Session IV.
POSTER session, Tuesday afternoon, October 30
Exhibit Hall B,
A detailed set of magnetic and Langmuire probe measurements have been made in both the STX^1 and TCS^2 devices at the University of Washington. These probes provide a direct measure of the magnetic field, density and electron temperature as a function of radius at the axial mid-plane. These measurements are compared with the predictions of a two-dimensional (r-\theta) numerical model^3, which was developed to study RMF current drive in an FRC. Two sorts of comparison are made. In the first we compare the phase and magnitude of the B_\theta component as a function of radius with that of the code, to infer the 2-D structure of the RMF as it penetrates. We look for evidence of “magnetic structures” that rotate relative to the RMF, that were predicted by the code for some conditions. In the second, we compare equilibrium profiles to estimate the plasma resistivity, and gain information about the physical processes that are required to sustain equilibrium. ^1J.T. Slough and K. E. Miller, Phys. Rev. Lett. 85, 1444 (2000) ^2H.Y. Guo, et.al., Submitted to Phys. Plasmas. ^3Richard D. Milroy, Phys. Plasmas 7, 4135 (2000)