METHOD OF MEASURING RADIOACTIVITY IN VOLUME SAMPLE BY GERMANIUM SEMICONDUCTOR DETECTOR

摘要

PROBLEM TO BE SOLVED: To simply and precisely determine detection efficiency characteristic to each volume sample, when a nuclear enterprise or the like measures radioactivity of the volume samples of various shapes, densities and materials for the purpose of radiation dose control and research. SOLUTION: The detection efficiency required when the radioactivity in the volume sample is measured by a germanium semiconductor detector is determined by placing a standard point-like radiation source in one point (representative point) existing in the periphery of the detector.