XRAYFIL, an analysis code for non-dispersive X-ray diagnostics

An X-ray filter analysis code, XRAYFIL, has been developed to allow more accurate non-dispersive X-ray plasma diagnosis with absorption filters by using a series of trial spectra of the emitting species. The code calculates a set of emission spectra for a given plasma using a CRE level population model package, RATION, and convolves it with the transmission characteristics of the filter set used, as well as the response function of the detector chosen. Comparison of the ratio of the signal through the different filters from these calculated values to that recorded in the experiment allows us to obtain a measurement of the plasma temperature and density. The code incorporates a number of options for various emission scenario and detector choices