Three-Dimensional Imaging Using Tagged 14.7-MeV Neutrons

摘要

We describe an ''associated particle'' method for producing three-dimensional images. Based on the t(d,n) sup 4 He reaction, the method requires access to only one side of the object being imaged. A major advantage of the technique is that it is possible to produce separate images for individual chemical elements in the material under observation. Studies were performed to select alpha-particle and gamma-ray detectors, to optimize experimental parameters, and to evaluate the effect of intervening materials between the neutron sources and the object under observation. 9 refs., 22 figs., 5 tabs. (ERA citation 13:054797)