Session RP1 - Poster Session VIII.
POSTER session, Thursday afternoon, October 30
Fran Hill Southeast Exhibit Hall, ACC
A hard x-ray system employing a CdZnTe detector has been implemented on HSX. The magnetic configuration has been altered between QHS and Mirror mode in order to determine the effect of magnetic ripple on the spectrum and densities of fast electrons. Pulse height analysis of the hard x-ray signals (HX) show the presence of x-ray photons with energy up to 1 MeV. In the QHS mode, the hard x-ray intensity decreases monotonically over two orders of magnitude as the central line averaged density increases from 0.2 to 1.0 x 10^12 cm^-3. In contrast, in the mirror configuration the intensity level is small at the lowest density, peaks at a density of 0.5 x 10^12 cm^-3 and then falls at higher density. In QHS the tail of the spectrum extends to higher energies than for the mirror mode. Increased intensities correlate with the highest stored energies as measured by the diamagnetic loop.