Artículo
Monte Carlo study of a convergent X-ray beam for high resolution X-ray fluorescence imaging
Fecha de publicación:
04/2021
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Applied Radiation and Isotopes
ISSN:
0969-8043
e-ISSN:
1872-9800
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The traditional X-ray tube design is built upon the impact of energetic electrons on high atomic number absorbers producing the X-ray output, consisting of photons due to Bremsstrahlung and fluorescence. Typically, electrons current hits the target within a limited area of a few millimeters square stopping the electrons, which lose their energy and produce the X rays constituting an inherently divergent beam. This geometrical property of traditional X-ray beams is responsible for several undesirable effects when trying to optimize applications requiring high incident fluence spatial concentration, like X-ray fluorescence imaging. This work presents a Monte Carlo study about a novel X-ray tube design, based on a cylindrical target that is capable of producing a convergent X-ray beam aimed at improving overall performance and spatial resolution in certain applications, like X-ray fluorescence imaging. Main design characteristics for relevant parts, like target/anode, filter, and collimator, have been carefully investigated by means of Monte Carlo simulation using two independent codes: FLUKA and PENELOPE. The obtained results suggest the feasibility of the proposed design remarking that high fluence concentration can be achieved, which can be particularly useful for further applications, like tumor targeting by X-ray fluorescence imaging by means of high atomic number nanoparticle infusion, as reported in this work.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Citación
Figueroa, R.; Geser, Federico Alejandro; López Correa, J.; Malano, F.; Valente, Mauro Andres; Monte Carlo study of a convergent X-ray beam for high resolution X-ray fluorescence imaging; Pergamon-Elsevier Science Ltd; Applied Radiation and Isotopes; 170; 4-2021; 1-11
Compartir
Altmétricas