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Title: Analysis of the multigroup model for muon tomography based threat detection

We compare different algorithms for detecting a 5 cm tungsten cube using cosmic ray muon technology. In each case, a simple tomographic technique was used for position reconstruction, but the scattering angles were used differently to obtain a density signal. Receiver operating characteristic curves were used to compare images made using average angle squared, median angle squared, average of the squared angle, and a multi-energy group fit of the angular distributions for scenes with and without a 5 cm tungsten cube. The receiver operating characteristic curves show that the multi-energy group treatment of the scattering angle distributions is the superior method for image reconstruction.
Authors:
; ; ; ;  [1]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Publication Date:
OSTI Identifier:
22278083
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 6; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS AND PHYSICAL PROTECTION; ALGORITHMS; ANGULAR DISTRIBUTION; COMPARATIVE EVALUATIONS; COMPUTERIZED TOMOGRAPHY; COSMIC MUONS; DENSITY; DIAGRAMS; IMAGE PROCESSING; IMAGES; MUON DETECTION; NON-PROLIFERATION POLICY; PROLIFERATION; SAFEGUARDS; SCATTERING; SIGNALS; TUNGSTEN