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Prospects for Thermal Neutron Detection and Imaging with the GammaTracker Handheld Radioisotope Identifier

Conference ·
DOI:https://doi.org/10.1117/12.798795· OSTI ID:963234
We present measured data on the neutron detection response of the GammaTracker handheld radioisotope identifier. Two neutron detection modes are discussed: measuring absorption gamma rays from the cadmium present in the Cd-Zn-Te spectrometers, and measuring the absorption gamma rays from moderator material present in the environment. In both cases, the capture gamma rays can be imaged to help locate a shielded neutron source. In this work, we discuss the total neutron detection efficiency of the GammaTracker instrument, and we present measured images of shielded neutron sources. Prospects for gamma-ray rejection are discussed.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
963234
Report Number(s):
PNNL-SA-61654; NN2001000
Country of Publication:
United States
Language:
English