A monte carlo study of dose rate distribution around the specially asymmetric CSM3-a 137Cs source.
Phys Med Biol
; 46(7): N169-174, 2001 Jul.
Article
em En
| MEDLINE
| ID: mdl-11474943
ABSTRACT
The CSM3 137Cs type stainless-steel encapsulated source is widely used in manually afterloaded low dose rate brachytherapy. A specially asymmetric source, CSM3-a, has been designed by CIS Bio International (France) substituting the eyelet side seed with an inactive material in the CSM3 source. This modification has been done in order to allow a uniform dose level over the upper vaginal surface when this 'linear' source is inserted at the top of the dome vaginal applicators. In this study the Monte Carlo GEANT3 simulation code, incorporating the source geometry in detail, was used to investigate the dosimetric characteristics of this special CSM3-a 137Cs brachytherapy source. The absolute dose rate distribution in water around this source was calculated and is presented in the form of an along-away table. Comparison of Sievert integral type calculations with Monte Carlo results are discussed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Radiometria
/
Braquiterapia
/
Radioisótopos de Césio
Tipo de estudo:
Health_economic_evaluation
Limite:
Female
/
Humans
Idioma:
En
Revista:
Phys Med Biol
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Espanha