Measurements with Pinhole and Coded Aperture Gamma-Ray Imaging Systems
Description/Abstract
From a safeguards perspective, gamma-ray imaging has the potential to reduce manpower and cost for effectively locating and monitoring special nuclear material. The purpose of this project was to investigate the performance of pinhole and coded aperture gamma-ray imaging systems at Oak Ridge National Laboratory (ORNL). With the aid of the European Commission Joint Research Centre (JRC), radiometric data will be combined with scans from a three-dimensional design information verification (3D-DIV) system. Measurements were performed at the ORNL Safeguards Laboratory using sources that model holdup in radiological facilities. They showed that for situations with moderate amounts of solid or dense U sources, the coded aperture was able to predict source location and geometry within ~7% of actual values while the pinhole gave a broad representation of source distributions
| DOI | 10.2172/971586 |
|---|---|
| Creator/Author: | Raffo-Caiado, Ana Claudia [ORNL] ; Solodov, Alexander A [ORNL] ; Abdul-Jabbar, Najeb M [ORNL] ; Hayward, Jason P [ORNL] ; Ziock, Klaus-Peter [ORNL] |
| Publication Date: | 2010 Jan 01 |
| OSTI Identifier: | OSTI ID: 971586 |
| Report Number(s): | ORNL/TM-2009/076 |
| DOE Contract Number: | DE-AC05-00OR22725 |
| DOI: | 10.2172/971586 |
| Other Number(s): | Other: NN4003020; MDGA517; TRN: US201005%%120 |
| Resource Type: | Technical Report |
| Research Org: | Oak Ridge National Laboratory (ORNL) |
| Sponsoring Org: | NNSA USDOE - National Nuclear Security Administration (NNSA) |
| Subject: | 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; APERTURES; DESIGN; GEOMETRY; MANPOWER; MONITORING; ORNL; PERFORMANCE; SAFEGUARDS; VERIFICATION |
| Country of Publication: | United States |
| Language: | English |
| Update Date: | 2011 Jan 27 |
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