Dosimetric Characteristics for Brachytherapy Sources

Journal Article · Thu May 05 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3576168· OSTI ID:21608100

DeWerd, Larry A; Davis, Stephen D ^[1]

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1. Department of Medical Physics, University of Wisconsin, Madison, Wisconsin (United States)

Brachytherapy sources are characterized by the dosimetric parameters in a protocol such as the American Association of Physicists in Medicine Task Group 43. The air-kerma strength is measured and traceable to a primary standard. Then the parameters such as dose-rate constant, radial dose function, and anisotropy function are measured and related back to the primary standard. This is normally accomplished with thermoluminescent dosimeters (TLDs). Since radial dose function and anisotropy function are relative parameters, some of the dosimetric corrections are negligible. For the dose-rate constant, parameters such as the energy dependence compared with a calibration beam such as {sup 60}Co need to be accounted for. A description of the primary standard measurements and TLD measurements will be discussed.

• OSTI ID: 21608100
• Journal Information: AIP Conference Proceedings, Vol. 1345, Issue 1; Conference: SSD summer school on concepts and trends in medical radiation dosimetry, Wollongong (Australia), 15-18 Sep 2010; Other Information: DOI: 10.1063/1.3576168; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
62 RADIOLOGY AND NUCLEAR MEDICINE
ANISOTROPY
BRACHYTHERAPY
CALIBRATION
COBALT 60
CORRECTIONS
DOSE RATES
DOSES
DOSIMETRY
IONIZATION CHAMBERS
KERMA
RADIATION EFFECTS
STANDARDS
THERMOLUMINESCENT DOSEMETERS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COBALT ISOTOPES
DOSEMETERS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
MEDICINE
MINUTES LIVING RADIOISOTOPES
NUCLEAR MEDICINE
NUCLEI
ODD-ODD NUCLEI
RADIATION DETECTORS
RADIOISOTOPES
RADIOLOGY
RADIOTHERAPY
THERAPY
YEARS LIVING RADIOISOTOPES