Title :CLEDX Keywords :EDXS quantitative analysis, Cliff-Lorimer Computer :IBM PC family or clones Operating System :Microsoft DOS 3.x or higher Programming Language :Microsoft FORTRAN Optimizing compiler 4.10 :(large library, math-coprocessor emulator mode) Hardware Requirements :None Author(s) :Pierre TREBBIA Correspondence Address :Laboratoire de Physique des Solides, Bat. 510 :F91405 ORSAY CEDEX FRANCE. :Email : Bitnet address : TREBBIA@FRUPS51 Abstract: From experimental conditions (angles, detection system, primary voltage, line intensities & backgrounds), this program computes the weight & atomic concentrations of up to 20 elements in a thin film X-Ray analysis experiment using the Cliff-Lorimer procedure. An estimation of the confidence intervals on the concentrations, for different first kind risks, is also given. No special hardware is needed (i.e. math coprocessor or graphic monitor). Results can be directed either to a lineprinter or to the screen. From the original COLIJN & ROMIG program PCEDS, several improvements are made concerning both the algorithms (parameterized maximum number of elements to analyse, computation speed, analysis of the results precision) and the accuracy of the formulae and data. Several misprints were also corrected. Reference : "CLEDX : a stand-alone program for quantitative X-Ray analysis of thin films using the Cliff-Lorimer procedure", P. TREBBIA, Ultramicroscopy 27, 343-348 (1989). ---------------------------------------------------------------------------