Apparatus and process for measuring gamma radiation from a radioactive waste container

摘要

Device for measuring gamma radiation emitted from a container holding radioactive waste (19). The device comprises shielding (16) with a plurality of openings (18), each containing a detector (20) that measures the radiation from a portion of the container. Simultaneous output signals are obtained from the detectors (20) and combined to obtain a representative gamma fluence for the total portion of the container measured. The container is then rotated to measure around the entire container and yield further signals. These signals are combined to obtain a total gamma radiation fluence from which the contents of the container can be determined.