title: Procedures for establishing and maintaining consistent air-kerma strength standards for low-energy, photon-emitting brachytherapy sources: recommendations of the Calibration Laboratory Accreditation Subcommittee of the American Association of Physicists in Medicine.
abstract: Low dose rate brachytherapy is being used extensively for the treatment of prostate cancer. As of September 2003, there are a total of thirteen 125I and seven 103Pd sources that have calibrations from the National Institute of Standards and Technology (NIST) and the Accredited Dosimetry Calibration Laboratories (ADCLs) of the American Association of Physicists in Medicine (AAPM). The dosimetry standards for these sources are traceable to the NIST wide-angle free-air chamber. Procedures have been developed by the AAPM Calibration Laboratory Accreditation Subcommittee to standardize quality assurance and calibration, and to maintain the dosimetric traceability of these sources to ensure accurate clinical dosimetry. A description of these procedures is provided to the clinical users for traceability purposes as well as to provide guidance to the manufacturers of brachytherapy sources and ADCLs with regard to these procedures.
authors.affiliation: Accredited Dosimetry Calibration Laboratory, Department of Medical Physics, University of Wisconsin, Madison, Wisconsin 53706, USA.
authors.forename: Larry A
authors.initials: LA
authors.lastname: DeWerd
authors.forename: M Saiful
authors.initials: MS
authors.lastname: Huq
authors.forename: Indra J
authors.initials: IJ
authors.lastname: Das
authors.forename: Geoffrey S
authors.initials: GS
authors.lastname: Ibbott
authors.forename: William F
authors.initials: WF
authors.lastname: Hanson
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Slowey
authors.forename: Jeffrey F
authors.initials: JF
authors.lastname: Williamson
authors.forename: Bert M
authors.initials: BM
authors.lastname: Coursey
mesh_terms: D000388:Air; D001918:Brachytherapy / Q000379:methods* / Q000592:standards*; D002138:Calibration; D006801:Humans; D007457:Iodine Radioisotopes / Q000627:therapeutic use; D010165:Palladium / Q000627:therapeutic use; D017785:Photons; D011868:Radioisotopes / Q000627:therapeutic use; D011874:Radiometry / Q000379:methods*; D011879:Radiotherapy Dosage
chemical_list: D007457:Iodine Radioisotopes; D011868:Radioisotopes; D010165:Palladium