Electron Dosimetry
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Desenvolvimento de uma interface grÃfica de usuÃrio para modelos computacionais de exposiÃÃo externa / DEVELOPMENT OF A GRAPHIC USER INTERFACE FOR EXTERNAL EXPOSURE COMPUTATIONAL MODELS
To evaluate the absorbed dose by the patient, in a series of exams, it is necessary to accomplish simulations using an exposure computational model. Such models are fundamentally composed of a virtual representation of the human body (phantom) and a Monte Carlo code. There are several Monte Carlo codes available and also specific voxel phantoms for the two g
Publicado em: 2007
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14. Desenvolvimento de um equipamento para dosimetria por luminescÃncia oticamente estimulada (LOE)
In recent years the Optically Stimulated Luminescence (OSL) has become a popular procedure for the dosimetry of the ionizing radiation. OSL arises from the recombination of charges which has been optically released from electron traps within the crystal. The electron population in the traps is the result of irradiation of the material, and thus the OSL inten
Publicado em: 2006
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15. UtilizaÃÃo do dosÃmetro Fricke para dosimetria de mÃquinas teleterapÃuticas, irradiadores gammacel e aparelhos de raios-X superficiais
The chemical dosimetry has been used as a reference in the measurement of the absorbed dose, with the Fricke dosimeter, at standardization laboratories. This dosimeter is considered an absolute dosimetric standard for measurements of radiation doses ranging from 20 to 400 Gy, covering a wide energy spectrum, from X-ray, g-ray to fast electron beam. The objec
Publicado em: 2006
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16. Estudo preliminar de RPE em banda K de esmalte dental e hidroxiapatita sintética irradiados / Preliminary Study of EPR in K-Band of Dental Enamel and Hydroxyapatite Synthetic Irradiated.
A hidroxiapatita e o esmalte dental são, na atualidade, alguns dos materiais mais pesquisados pela técnica de espectroscopia por Ressonância Paramagnética Eletrônica ? RPE. O esmalte dental, que possui cerca de 97% de sua massa constituída por cristais de hidroxiapatita, se apresenta como o tecido humano preferencial para dosimetria de radiação com o
Publicado em: 2002
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17. Quantitative megavoltage radiation therapy dosimetry using the storage phosphor KCl:Eu2+
This work, for the first time, reports the use of europium doped potassium chloride (KCl:Eu2+) storage phosphor for quantitative megavoltage radiation therapy dosimetry. In principle, KCl:Eu2+ functions using the same photostimulatated luminescence (PSL) mechanism as commercially available BaFBr0.85I0.15:Eu2+ material that is used for computed radiography (C
American Association of Physicists in Medicine.