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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1628

Title: Standardization of P-33 by the TDCR efficiency calculation technique
Authors: Simpson, BRS
Morris, WM
Keywords: Phosphorus-33
Liquid scintillation coincidence counting
Triple-to-double coincidence ratio
TDCR technique
Issue Date: Feb-2004
Publisher: Pergamon-Elsevier Science Ltd
Citation: Simpson, BRS and Morris, WM. 2004. Standardization of P-33 by the TDCR efficiency calculation technique. Applied Radiation and Isotopes, vol. 60, 04 February, pp 465-468
Abstract: The activity of the pure beta-emitter phosphorus-33 (P-33) has been directly determined by the triple-to-double coincidence ratio (TDCR) efficiency calculation technique, thus extending the number of radionuclides that have been standardized by this simple, non-extrapolation liquid scintillation (LS) method. The major advantage of inherently accounting for chemical quenching without the need for additional external measurements is demonstrated. The P-33 solution activity concentration was verified by tracing with cobalt-60, utilizing 4pi(LS) beta-gamma coincidence counting. Agreement to within 1.2% confirmed the reliability of the TDCR measurements.
URI: http://hdl.handle.net/10204/1628
http://hdl.handle.net/10204/1628
ISSN: 0969-8043
Appears in Collections:Metrology
General science, engineering & technology

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