THE CALCULATION OF GAMMA-RAY HEATING IN TARGET SAMPLES LOCATED IN THE BSR SHIELD

摘要

An analysis has been made of gamma-ray heating in lead, iron, and aluminum samples as a function of position in the water shield surrounding the BSR core. The results obtained are in excellent agreement with experimental measurements. The average values of the calculated gamma-ray heat generation rates in the target materials were found to agree with the measured values, over the range of distances from the core for which the measurements were made, to within 4 per cent, with a maximum deviation of 20 per cent. The analysis includes the evalua¬tion of the heat generation rates in the samples from core gamma rays, shield capture gamma rays, target capture gamma rays, and target decay beta particles. The methods of evaluation and the assumptions necessary are discussed. It is concluded that the basic gamma-ray data and calculational methods employed may be used in similar analyses for other reactor systems.