INVESTIGADORES
PÉREZ Pedro Antonio
artículos
Título:
Primary and scattering contributions to beta scaled dose point kernels by means of Monte Carlo simulations
Autor/es:
M. VALENTE; F. BOTTA; P. PÉREZ; G. PEDROLI
Revista:
Revista Brasileira de Física Médica
Editorial:
Aociação Brasileira de Física Médica
Referencias:
Lugar: São Paulo; Año: 2012 vol. 6 p. 3 - 6
ISSN:
2176-8978
Resumen:
Beta-emitters have proved to be appropriate for radioimmunotherapy. The
dosimetric characterization of each radionuclide has to be carefully investigated. One usual and practical dosimetric approach is the
calculation of dose distribution from a unit point source emitting
particles according to any radionuclide of interest, which is known as dose point kernel.
Absorbed dose distributions are due to primary and radiation scattering contributions. This work presented a method capable of performing dose
distributions for nuclear medicine dosimetry by means of Monte Carlo methods. Dedicated subroutines have been developed in order to
separately compute primary and scattering contributions to the total
absorbed dose, performing particle transport up to 1 keV or least. Preliminarily,
the suitability of the calculation method has been satisfactory, being
tested
for monoenergetic sources, and it was further applied to the
characterization of different beta-minus radionuclides of nuclear
medicine interests for radioimmunotherapy.