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612-822-4611
Improved Multinuclide Imaging of Special Nuclear Material Using a High Purity Germanium Double Sided Strip Detector

Improved Multinuclide Imaging of Special Nuclear Material Using a High Purity Germanium Double Sided Strip Detector

Hardcover

Technology & EngineeringPhysics

ISBN10: 1025080807
ISBN13: 9781025080802
Publisher: Hutson Street Press
Published: May 22 2025
Pages: 134
Weight: 0.81
Height: 0.38 Width: 6.14 Depth: 9.21
Language: English

In the conduct of this research effort, neutron activated Sn sources and standard radioactive sources were used to simulate the gamma energy spectrum of a nuclear weapon pit. A converging hole collimator was designed, constructed, and mated with an HPGe Double Sided Strip Detector. A MATLAB image processing code was developed to produce a grayscale image of the sources. A variety of source configurations was examined to demonstrate the system's ability to obtain proper spatial distribution information for a multinuclide gamma emitting source. By replacing the converging hole collimator with a second detector array (as in a Compton camera) to improve detector efficiency, HPGe strip detectors may be used for the intended application of identifying the presence of a spoof weapon pit consisting of multiple nuclide sources meant to mimic a real weapon pit.

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