An attempt was made to examine the usefulness of the elaborated computer program for calculation of gamma radiation dose rate for technological purposes. The main problem is the determination of radiation dose absorbed in materials of various type, size and kind. To this end the results of computer calculations were compared with those obtained experimentally. For experimental determinations of dose rate the chemical Fricke dosimeter and ionizing chambers were used. Good agreement of the results was obtained for absorbing layers of air, water and aluminium. In case of concrete, on account of the lack of unanimous data concerning the properties of this material, serious discrepancy was observed. For polymeric low density materials (foamed and granulated polystyrene) of a thickness up to several centimeters the results were close to those calculated for air and water respectively. The present version of the computer program enables one to calculate, with a good accuracy, the radiation dose rate for a given configuration of radiation sources in the irradiated material. Therefore it may be used for technological purposes.