title: Quality assurance tool for high dose rate brachytherapy.
abstract: An insert for a well ionization chamber is described for quality assurance tests for high dose rate remote afterloaders. The use of this insert over time has shown its applicability for efficient QA tests for the high dose rate afterloader. The measurement results are six times greater than the uncertainties involved for the measurements. Checks on position can be made better than 1 mm and dwell times better than 1 s. The overall measurements can be done to better than 1.5%. QA checks can be accomplished in a shorter time period with as great or better accuracy than prior film techniques.
authors.affiliation: Department of Medical Physics, University of Wisconsin, Madison, Wisconsin 53706, USA.
authors.forename: L A
authors.initials: LA
authors.lastname: DeWerd
authors.forename: P
authors.initials: P
authors.lastname: Jursinic
authors.forename: R
authors.initials: R
authors.lastname: Kitchen
authors.forename: B R
authors.initials: BR
authors.lastname: Thomadsen
mesh_terms: D001918:Brachytherapy / Q000592:standards*; D006801:Humans; D007854:Lead; D008433:Mathematics; D008961:Models, Structural; D011785:Quality Assurance, Health Care; D011786:Quality Control; D011879:Radiotherapy Dosage / Q000592:standards*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D007854:Lead