title: Uncertainty in delivered dose resulting from the distribution of source activities in a Selectron LDR afterloader.
abstract: The uncertainty in the delivered dose resulting from the distribution of 137Cs source activity in a clinical Selectron LDR unit has been studied. A comparison is made of the dose delivered to a point 'A' in an implant with sources of equal activity to the actual dose delivered in the same implant with source activities randomly chosen from the population in the afterloader.
authors.affiliation: Roswell Park Cancer Institute, Department of Radiation Medicine, Buffalo, NY 14263, USA.
authors.forename: A K
authors.initials: AK
authors.lastname: Ho
authors.forename: R
authors.initials: R
authors.lastname: Castiglione
authors.forename: M B
authors.initials: MB
authors.lastname: Podgorsak
authors.forename: C H
authors.initials: CH
authors.lastname: Sibata
authors.forename: K H
authors.initials: KH
authors.lastname: Shin
mesh_terms: D002588:Cesium Radioisotopes; D006801:Humans; D019300:Medical Errors; D011829:Radiation Dosage; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000295:instrumentation / Q000379:methods; D035501:Uncertainty
chemical_list: D002588:Cesium Radioisotopes