K theta analysis and propagation direction sensitivity of HIBP data from TEXT

Summary Form only given, as follows. The heavy ion beam probe (HIBP) makes localized measurements of density and potential fluctuations in TEXT using a two-point measurement scheme. The data can be analyzed to determine the average wavenumber, k, and the crosscorrelation of the signals at the two points. Minor radius and line averaged density scaling of k are reported. The goal was to evaluate the feasibility of using the HIBP to achieve a spatially resolved measurement of two distinct waves propagating in opposite diamagnetic drift directions. A simulation of the two-wave model was carried out to show whether correlation time analysis can distinguish the two modes, and the analysis was applied to actual data.<>