Total inspection system and method for measuring the alpha beta and gamma radioactivity from dismantled radioactive wastes in the nuclear power plant decommissioning

摘要

The present invention relates to an automated radioactive contamination total water inspection system and an overall water inspection system capable of continuously checking the radioactive surface contamination of wastes regardless of the type and size of waste, . Such a radiation inspection system comprises a radiation shielding compartment which can be moved by a transport means so that it can be used at a nuclear dismantling site; A conveyor installed in the shielding compartment for feeding and discharging the objects to be inspected loaded on the inspection tray; A shielding unit shielding four sides by a radiation shielding member and preventing an influence of an external electromagnetic radiation line when measuring a radiation transmitted to the inspected object by a conveyor; A distance measurer disposed inside the shield to measure a height and a size of the object to be inspected; A radiation measuring unit arranged to be able to ascend and descend inside the shielding unit to perform a radioactivity test on the object to be inspected, and to perform alpha, beta and gamma radiation measurements at the height calculated by the data measured by the distance measuring unit; A radiation analyzer for analyzing the radiation measured by the radiation measuring unit; And a control unit for sequentially performing a radioactivity test by controlling it in conjunction with a conveyor, a shielding unit, a distance and weight measuring unit, a radiation measuring unit, and a radioactivity analyzer.