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RESEARCH PRODUCT

Broad-beam transmission data for new brachytherapy sources, Tm-170 and Yb-169

Adrie J. J. BosJose Perez-calatayudDomingo GraneroJack L.m. VenselaarFacundo Ballester

subject

medicine.medical_specialtyMaterials sciencemedicine.medical_treatmentBrachytherapyBrachytherapyMonte Carlo methodOpticsmedicineHumansRadiology Nuclear Medicine and imagingMedical physicsYtterbiumRadioisotopesRadiationRadiological and Ultrasound Technologybusiness.industryPublic Health Environmental and Occupational HealthRadiotherapy DosageGeneral MedicineBeam transmissionIridium RadioisotopesTransmission (telecommunications)Cesium RadioisotopesThuliumCalibrationDose reductionRadiation protectionbusinessMonte Carlo MethodHalf-value layer

description

The characteristics of the radionuclides (170)Tm and (169)Yb are highly interesting for their use as high dose-rate brachytherapy sources. The introduction of brachytherapy equipment containing these sources will lead to smaller required thicknesses of the materials used in radiation protection barriers compared with the use of conventional sources such as (192)Ir and (137)Cs. The purpose of this study is to determine the required thicknesses of protection material for the design of the protecting walls. Using the Monte Carlo method, transmission data were derived for broad-beam geometries through lead and concrete barriers, from which the first half value layer and tenth value layer are obtained. In addition, the dose reduction in a simulated patient was studied to determine whether transmission in the patient is a relevant factor in radiation protection calculations.

yearjournalcountryeditionlanguage
2005-07-19Radiation Protection Dosimetry
https://doi.org/10.1093/rpd/nci322