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arXiv · 1106.5901

Simulated Performance Of Algorithms For The Localization Of Radioactive Sources From A Position Sensitive Radiation Detecting System (COCAE)

K. Karafasoulis·K. Zachariadou·S. Seferlis·I. Kaissas·C. Lambropoulos·D. Loukas·C. Potiriadis
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Abstract

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, on the quality of the reconstructed source image as well as on the triangulation method. These algorithms have been tested on a large number of simulated photons in a wide energy range (from 200keV up to 2MeV) emitted by point-like radioactive sources located at different orientation and source-to-detector distances.

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K. Karafasoulis, K. Zachariadou, S. Seferlis, I. Kaissas, C. Lambropoulos, D. Loukas, C. Potiriadis. 2011-06-29. Simulated Performance Of Algorithms For The Localization Of Radioactive Sources From A Position Sensitive Radiation Detecting System (COCAE). https://doi.org/10.1063/1.3665338

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