Investigation of Applications of Compton Backscatter
Abstract
An analytical study of detector yield as a function of source-collimatordetector geometry has been conducted to support the conclusions reached and the recommendations made in this study.The equipment necessary to evaluate the principle of radiation thick ness gaging by use of Compton backscatter has been assembled and tested.Spectral response of three collimator-detector geometries has been measured for radiation from cesium-137 and tin-113 sources.Using the source-collimator-detector assembly yielding the highest signal-to-background ratio, inspection scans of simulated pipewall defects have been made to evaluate maximum defect sensitivity of the probe.
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