Monte Carlo characterization of an ytterbium-169 high dose rate brachytherapy source with analysis of statistical uncertainty
- Radiation Laboratory, University of Massachusetts Lowell, 1 University Avenue, Lowell, Massachusetts 01854 (United States)
An ytterbium-169 high dose rate brachytherapy source, distinguished by an intensity-weighted average photon energy of 92.7 keV and a 32.015{+-}0.009 day half-life, is characterized in terms of the updated AAPM Task Group Report No. 43 specifications using the MCNP5 Monte Carlo computer code. In accordance with these specifications, the investigation included Monte Carlo simulations both in water and air with the in-air photon spectrum filtered to remove low-energy photons below 10 keV. TG-43 dosimetric data including S{sub K}, D(r,{theta}), {lambda}, g{sub L}(r), F(r,{theta}), {phi}{sub an}(r), and {phi}{sub an} were calculated and statistical uncertainties in these parameters were derived and calculated in the appendix.
- OSTI ID:
- 20774969
- Journal Information:
- Medical Physics, Vol. 33, Issue 1; Other Information: DOI: 10.1118/1.2147767; (c) 2006 American Association of Physicists in Medicine; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-2405
- Country of Publication:
- United States
- Language:
- English
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