Osvaldo Brígido Flores

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Evaluating the perfomance of PET/CT Gemini TF64 for dynamic 4D PET/CT imaging for radiotherapy treatment planning using the CIRS 008A thorax phantom Computational approach of the interaction of gamma radiation coming from neutron capture on biomolecules via GEANT4 Diego Tellez, Steven Medina, Alfonso Leyva, Edwin Munévar Computational approach to the(More)
The natural radioactivity of some building materials commonly used in Cuba was measured by gamma spectrometry. Typical concentrations encountered so far encountered are in the ranges: 47-2511 Bq kg(-1) for (40)K; 9-71 Bq kg(-1) for (226)Ra; and 2-38 Bq kg(-1) for (232)Th. The external gamma ray absorbed doses in indoor air and the corresponding effective(More)
The results are described of the study carried out with the aim of assessing doses received by the Cuban population due to the external exposure to environmental radiation sources. Contributions of cosmic radiation's ionising and indirectly ionising components to these doses, as well as the fraction resulting from terrestrial radiation, were also assessed(More)
In an attempt to estimate the effective collective dose imparted to the population of Camagüey-Ciego de Avila territory, Cuba, we have made use of the statistics from nuclear medicine examinations given to a population of 1.1 million inhabitants for the years 1995-1999. The average annual frequency of examinations was estimated to be 3.82 per 1000(More)
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