The examination of LWR irradiated fuel assemblies using simple ion chamber techniques
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The application of ion chambers and proportional chambers to the nondestructive examination of irradiated LWR fuel assemblies is discussed. Axial activity profile measurements are compared with the gamma-ray profiles obtained from a germanium detector. A discussion of the use of these simple devices as a complementary technique to the more complicated gamma spectroscopy is given as well as the feasibility of using these devices in a stand-alone mode for consistency checks on the burnups of irradiated LWR fuel assemblies. Emphasis is placed on the simplicity, accuracy, and time-saving aspects of these devices.