Method and Apparatus for Measuring Gamma Radiation for Determination of Clearance Level of Nuclear Metal Radioactive Waste Having Various Shapes and Densities

摘要

A method and apparatus for measuring gamma radioactivity for confirming the presence or absence of deregulation of nuclear metal radioactive wastes having various shapes and densities are presented. A method for measuring gamma radioactivity for confirming the presence or absence of deregulation of nuclear metal radioactive waste according to an embodiment includes the steps of measuring a shape by 3D modeling the metal radioactive waste using a 3D scanner; Comparing the 3D data acquired through the 3D scanner with an MCNP computer code to obtain a correction factor; Measuring the radioactivity of the metal radioactive waste using a gamma radioactivity measuring unit to obtain a measured value; Reflecting the correction coefficient obtained through the MCNP computer code to the measured value obtained through the gamma radiation measurement unit; And evaluating whether or not the nuclear power plant metal radioactive waste is deregulated according to the radioactivity concentration reflected in the correction factor.