Die Verwendung von Rechenautomaten für radiochemische Analysen

Abstract

The usefulness of the application of radiochemical methods in analytical chemistry depends quite often on the question, if one is able to determine the activity of the single components in a mixture of radionuclides. One way to solve this problem is to analyse the gamma-spectra or the decay curve of the sample. The graphical methods normally applied for this evaluation of the data show some drawbacks which could be avoided by using numerical methods. But the numerical analysis of the measured data are so elaborate, that one has to use electronic computers. Therefore, a lot of work has been done in the last years to develope the necessary calculation programms. It is now possible to calculate the γ-energy and relative intensity or half-lives and the activity of the components by a least square fit. In addition to the very good accuracy of the results and the high speed of the analysis, the use of the computer for the evaluation of the measured data turned out to be rather cheap. Depending on the problem, the price per analysis amounts to $ 0.50 to $ 40.00.