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Cosmic Ray Inspection and Passive Tomography for SNM Detection.

Cosmic Ray Inspection and Passive Tomography for SNM Detection.

Authors :
Armitage, John
Brymant, Douglas
Cousins, Thomas
Gallant, Grant
Jason, Andrew
Jonkmans, Guy
Noël, Scott
Oakham, Gerald
Stockt, Trevor J.
Wallertt, David
Source :
AIP Conference Proceedings. 12/2/2009, Vol. 1194 Issue 1, p24-35. 12p. 3 Diagrams, 2 Charts, 1 Graph.
Publication Year :
2009

Abstract

The Cosmic Ray Inspection and Passive Tomography (CRIPT) project has recently started investigating the detection of illicit Special Nuclear Material in cargo using cosmic ray muon tomography and complementary neutron detectors. We are currently performing simulation studies to help with the design of small scale prototypes. Based on the prototype tests and refined simulations, we will determine whether the muon tracking system for the full scale prototype will be based on drift chambers or extruded scintillator trackers. An analysis of the operations of the Port of Montreal has determined how long muon scan times should take if all or a subset of the cargo is to be screened. As long as the throughput of the muon system(s) is equal to the rate at which containers are unloaded from ships, the impact on port operations would not be great if a muon scanning stage were required for all cargo. We also show preliminary simulation results indicating that excellent separation between Al, Fe and Pb is possible under ideal conditions. The discrimination power is reduced but still significant when realistic momentum resolution measurements are considered. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0094243X
Volume :
1194
Issue :
1
Database :
Academic Search Index
Journal :
AIP Conference Proceedings
Publication Type :
Conference
Accession number :
97090906