[en] The profitability of a reactor depends on the efficient utilization of the fuel contained in the fuel elements. Fuel elements are developped and tested by irradiation in research reactors and tests in 'hot cells'. An important part is played by gammaspectrometric measurements to determine the amount and distribution of fission products. As the specimen are irretrievable and can only be transported to the place of measurement by extensive and complicated sluice and transport processes, the gammaspectroscopic measurements have to be carried out extremely scrupulously, and the measured values have to be recorded with great precision. This is why in the 'hot cells' of the 'Institut fuer Reaktorwerkstoffe' the measured values are transmitted over a line network from several measuring points to an IBM system/7, where the formal correctness of the data is checked. The spectres are evaluated on an IBM system/370-165 in the 'Zentralinstitut fuer angewandte Mathematik'. (orig./AK)