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

Autor:	K. Karafasoulis, K. Zachariadou, S. Seferlis, I. Kaissas, C. Lambropoulos, D. Loukas, C. Potiriadis, Marianne E. Hamm, Robert W. Hamm
Rok vydání:	2011
Předmět:	Physics Physics - Instrumentation and Detectors Photon Orientation (computer vision) Position (vector) Range (statistics) FOS: Physical sciences Triangulation (social science) Image processing Instrumentation and Detectors (physics.ins-det) Radiation Algorithm Energy (signal processing)
Zdroj:	AIP Conference Proceedings.
ISSN:	0094-243X
DOI:	10.1063/1.3665338
Popis:	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. Comment: 8 pages, 7 figures, 11th International Conference on Applications of Nuclear Techniques, Crete, Greece, June 12-18, 2011
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::850690119eaf4035e1697ffec29ce08b https://doi.org/10.1063/1.3665338 Zobrazit plný text záznamu