Simpson, BRSMorris, WM2007-02-082007-06-072007-02-082007-06-072004-02Simpson, BRS and Morris, WM. 2004. Standardization of P-33 by the TDCR efficiency calculation technique. Applied Radiation and Isotopes, vol. 60, 04 February, pp 465-4680969-8043http://hdl.handle.net/10204/1628http://hdl.handle.net/10204/1628The 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.244521 bytesapplication/pdfenCopyright: 2004 Pergamon-Elsevier Science LtdPhosphorus-33Liquid scintillation coincidence countingTriple-to-double coincidence ratioTDCR techniqueArticleSimpson, B., & Morris, W. (2004). Standardization of P-33 by the TDCR efficiency calculation technique. http://hdl.handle.net/10204/1628Simpson, BRS, and WM Morris "Standardization of P-33 by the TDCR efficiency calculation technique." (2004) http://hdl.handle.net/10204/1628Simpson B, Morris W. Standardization of P-33 by the TDCR efficiency calculation technique. 2004; http://hdl.handle.net/10204/1628.TY - Article AU - Simpson, BRS AU - Morris, WM AB - 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. DA - 2004-02 DB - ResearchSpace DP - CSIR KW - Phosphorus-33 KW - Liquid scintillation coincidence counting KW - Triple-to-double coincidence ratio KW - TDCR technique LK - https://researchspace.csir.co.za PY - 2004 SM - 0969-8043 T1 - Standardization of P-33 by the TDCR efficiency calculation technique TI - Standardization of P-33 by the TDCR efficiency calculation technique UR - http://hdl.handle.net/10204/1628 ER -