Published December 13, 2011 | Version v1
Journal article Metadata-only

Simulated Performance of Algorithms for the Localization of Radioactive Sources from a Position Sensitive Radiation Detecting System (COCAE)

Creators

  • 1. Hellenic Army Academy, 16673 Vari (Greece)
  • 2. Greek Atomic Energy Commission, Patriarxou Grigoriou and Neapoleos, 15310, Athens (Greece)
  • 3. Technological Educational Institute of Piraeus, Thivon 250, 12244, Egaleo (Greece)
  • 4. Technological Educational Institute of Chalkida, Psachna Evias, 34400 Greece (Greece)
  • 5. Institute of Nuclear Physics, National Center for Scientific Research Demokritos 15310, Athens (Greece)

Description

Simulation studies are presented regarding the performance of algorithms that localize point-like radioactive sources detected by a position sensitive portable radiation instrument (COCAE). The source direction is estimated by using the List Mode Maximum Likelihood Expectation Maximization (LM-ML-EM) imaging algorithm. Furthermore, the source-to-detector distance is evaluated by three different algorithms based on the photo-peak count information of each detecting layer, the quality of the reconstructed source image, and the triangulation method. These algorithms have been tested on a large number of simulated photons over a wide energy range (from 200 keV to 2 MeV) emitted by point-like radioactive sources located at different orientations and source-to-detector distances.

Additional details

Identifiers

DOI
10.1063/1.3665338;
arXiv
arXiv:1106.5901v1;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
1412
Journal Issue
1
Journal Page Range
p. 377-384
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
11. international conference on applications of nuclear techniques
Dates
12-18 Jun 2011
Place
Crete (Greece)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43094044
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALGORITHMS; COMPUTERIZED SIMULATION; GAMMA DETECTION; GAMMA RADIATION; IMAGE PROCESSING; IMAGES; INFORMATION; KEV RANGE; MAXIMUM-LIKELIHOOD FIT; MEV RANGE; ORIENTATION; PERFORMANCE; PHOTONS; POSITION SENSITIVE DETECTORS; RADIATION SOURCES
Descriptors DEC
BOSONS; DETECTION; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; IONIZING RADIATIONS; MASSLESS PARTICLES; MATHEMATICAL LOGIC; MATHEMATICAL SOLUTIONS; MEASURING INSTRUMENTS; NUMERICAL SOLUTION; PROCESSING; RADIATION DETECTION; RADIATION DETECTORS; RADIATIONS; SIMULATION

Optional Information

Notes
(c) 2011 American Institute of Physics