6533b828fe1ef96bd1288470

RESEARCH PRODUCT

A Monte Carlo study of intersource effects in dome-type applicators loaded with LDR Cs-137 sources

Domingo GraneroFrançoise LlisoJose Perez-calatayudFacundo Ballester

subject

Materials scienceMaximum Tolerated DoseBrachytherapyMonte Carlo methodRadiationSensitivity and SpecificityVaginal wallDome (geology)Superposition principleOpticsHumansDosimetryRadiology Nuclear Medicine and imagingLow dose rateEquipment Safetybusiness.industryRadiotherapy Planning Computer-AssistedDose-Response Relationship RadiationRadiotherapy DosageEquipment DesignHematologyOncologyDose rateNuclear medicinebusinessMonte Carlo Method

description

In this study, the dose rate distributions produced by low dose rate Cs-137 sources loaded in afterloadable dome applicators are studied using the Monte Carlo method. Dose differences between Monte Carlo results and calculations done using the superposition principle are within 1-3% in front of the applicator and between 3 and 10% near and along the longitudinal source axis. Consequently, the real doses to lateral vaginal wall, rectum and bladder are very close to the doses estimated applying the superposition principle, while the dose to the vaginal cuff has been overestimated by up to 10%.

yearjournalcountryeditionlanguage
2005-11-01Radiotherapy and Oncology
https://doi.org/10.1016/j.radonc.2005.08.007