Geant4 Code
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Aplicabilidade e validação do Geant4 para fótons e elétrons em radioterapia / GEANT4 applicability and validation to Photons and Electrons in Radiotherapy
Due to the increasing use of ionizing radiation in medical applications, in recent decades, the simulation codes for radiation interacting with matter, based on Monte Carlo Method, have been constantly adapted to applications in medical physics. TheMonte Carlo method is a statisticalmethod of numerical simulation of problems using essentially a sequence of r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/06/2011
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2. Simulação da geometria e do desempenho do detector de antineutrinos do Projeto Angra / Simulation of the design and performance of the detector antineutrinos Angra Project
In this work is presented a comparative study between some geometries for the Neutrinos Angra Project detector. This Project was born from a colaboration that is dedicated to the construction of a compact antineutrinos detector for monitoring, in real time, the thermal power of Angra II nuclear reactor. Through the antineutrinos ux is possible to get informa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/11/2009
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3. Modelagem computacional de tomografia com feixe de prótons / Computational modeling of protons tomography
In the present work a preliminary research via computer simulations was made in order to elaborate a prior program for the first experimental pCT setup in Brazil. Proton therapy is a high precise form of a cancer treatment. Treatment planning nowadays is performed basing on X ray Computer Tomography data (CT), alternatively the same procedure could be perfor
Publicado em: 2009
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4. Characterization of cadmium and zinc telluride (CZT) and pin type silicon (Si-Pin) photodiode detectors for x-ray spectrometry / Characterization of cadmium and zinc telluride (CZT) and pin type silicon (Si-Pin) photodiode detectors for x-ray spectrometry / CaracterizaÃÃo dos detectores de telureto de cÃdmio e zinco (CZT) e fotodiodo de silÃcio tipo pin (Si-PIN) para a espectrometria de raios-x / CaracterizaÃÃo dos detectores de telureto de cÃdmio e zinco (CZT) e fotodiodo de silÃcio tipo pin (Si-PIN) para a espectrometria de raios-x
A detailed understanding of X-ray spectrum is essential for analyzing equipment that emits this kind of radiation in radiodiagnostic facilities. Information on the various parameters that are contained in this spectrum is important for quality control of X-ray equipment. Spectrometry of X-ray beams uses very often GeHP detectors, that have good detection eff
Publicado em: 2008
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5. Acoplamento dos fantomas tomogrÃficos FAX06 e MAX06 ao cÃdigo Monte Carlo GEANT4
The MAX06 and the FAX06 phantoms have been developed in recent years at the Department of Nuclear Energy of the Universidade Federal de Pernambuco. They are the first two adult tomographic or voxel phantoms which have body heights, body weights as well as organ and tissues masses based on the anatomical reference data given by the International Commission on
Publicado em: 2007
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6. Macro Response Monte Carlo algorithm evaluated through electron spectra. / Avaliação de algoritmo Macro Response Monte Carlo através dos espectros de elétrons
In radiotherapy the computer simulation elapsed time for treatment planning is still a prob- lem. Several techniques for electron transport variance reduction have been developed in order to speed up the calculations. Some of them are: Macro Monte Carlo (MMC), Response History Monte Carlo (RHMC) and Macro Response Monte Carlo (MRMC). All of them use a databa
Publicado em: 2006
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7. Evaluation of the fluence to dose conversion coefficients for high energy neutrons using a voxel phantom coupled with the GEANT4 code
Crews working on present-day jet aircraft are a large occupationally exposed group with a relatively high average effective dose from galactic cosmic radiation. Crews of future high-speed commercial flying at higher altitudes would be even more exposed. To help reduce the significant uncertainties in calculations of such exposures, the male adult voxels phan
Brazilian Journal of Physics. Publicado em: 2005-09