A new computer program, named CiROU, has been written to determine the chemical composition of homogeneous samples analyzed by X-ray fluorescence spectrometry (XRF). It uses the furdamental algorithm to convert measured intensities into concentrations anc to correct for matrix effects and runs on any IBM-PC/XT/AT, PS/2 or compatible corrputer.
The program is very easy to use mainly because it is a step-by-step guide to the routine process of analyzing specimens by XRF and because a user friendly interface makes up a main menu bar containing six major options, which provide several other options inside a pull-down window system.
The program is applicable to specimens of any composition with the utmost accuracy that can be obtained from the fundamental-parameters method. It’s unique calibration procedure still adds to the accuracy by eliminating the bias between theory and reality.
The program is a complete “off-line” program allowing to perform all the steps of an XRF analysis: calculation of theoretical influence coefficients, calibration, reading of measured intensities, calculation of net intensities and concentrations of unknowns, print-out of analytical reports and data transmission to or from an external computer.