Characterization of Gamma-Ray Imagers Using GADRAS
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). WMD CT & Response and WMD Detect & Threat Analysis
This document describes how gamma-ray imagers are characterized using the Gamma Detector Response and Analysis Software (GADRAS). The initial step of the characterization process entails definition of detector dimensions and estimation of a few parameters that are specific to gamma-ray imagers. Energy calibration and resolution parameters are then adjusted based on comparison between computed spectra and measurements for several calibration source. These steps are analogous to the way non-imaging spectrometers are characterized. The parameters are then refined by an empirical process to achieved good agreement between measured and computed spectra as functions of gamma-ray energy and angular group.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
- DOE Contract Number:
- AC04-94AL85000; NA0003525
- OSTI ID:
- 1528842
- Report Number(s):
- SAND--2018-5749; 664031
- Country of Publication:
- United States
- Language:
- English
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