Automatic Processing of Diode Spectrometry Results

Abstract

The analysis of a diode gamma ray spectrogram is based on the research and study of the various total absorption peaks evidenced by the study of the relative dispersion of the contents in a limited group of successive channels. The areas which correspond statistically to static phenomena enable a continuous base line to be determined which will serve as a "substratum" for the various peaks. This method, based on a test of agreement with Poisson's law of distribution, has the advantage of not bringing in the shape of the peak, remaining applicable at all levels of activity without requiring any smoothing and being applicable generally in the analysis of any sampled data where the occurrences to be detected appear as so many discontinuities in a random continuum. Full automation is only possible if the various data are correctly prepared The results of each measurement are initially supplied with a label line summarizing the conditions of that particular measurement (date, duration, type of measurement) and providing the essential information on the measured object (references, date, origin, amount, etc.). This information, to which is added the exact calibration conditions, is grouped into a single so called standard text, before the start of any processing. During this operation every possible check is made upon the whole of this information, so as to make the checks in the program itself all the lighter.