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Nikuliak A.A.,Scientific Research and Project Designing Institute Iskra
Journal of Nano- and Electronic Physics | Year: 2012

In studying the properties of tomographic gamma - ray imaging systems with coded apertures, (gamma emission - tomography) raised the question of the influence of the interaction of gamma - radiation with matter on the quality of the reconstructed image. In this paper describes principles of the tomographical information reconstruction in systems with coded apertures, the results of the software - simulation of decoding the location of point sources of ionizing radiation in the field of view of the complete coding. © 2012 Sumy State University. Source


Plakhothik V.Y.,Scientific Research and Project Designing Institute Iskra
Journal of Nano- and Electronic Physics | Year: 2011

Using of the likelihood methods for scintillation coordinate calculation in the gammacamera detector is considered in the paper. Using of the composite goodness-of-fit criteria is proposed for increasing of the methods robustness. The influence of the used goodness-of-fit criteria to intrinsic gamma-camera properties is studied by the simulation methods. Source


Kochergin A.V.,Scientific Research and Project Designing Institute Iskra
Journal of Nano- and Electronic Physics | Year: 2011

The operation principle of system for remote search, localization and identification of gamma radiation sources on the base of all-round surveillance gamma-scanner realized on the spatial-time coding principle is described in the paper. Results of performances research are presented. Source


Plakhotnik V.Y.,Scientific Research and Project Designing Institute Iskra | Polyakov G.A.,Scientific Research and Project Designing Institute Iskra
Journal of Nano- and Electronic Physics | Year: 2010

The methods and algorithms of scintillation coordinates calculation in gamma-camera position-sensitive detector are considered in the paper. The results of numerical model experiments, which were carried out for clearing-up of relative operating speed of different coordinate calculation methods, are presented. The analysis of obtained results was carried out for determination of perspective for application algorithms and likelihood methods. Source

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