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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1629

Title: Direct activity determination of Mn-54 and Zn-65 by a non-extrapolation liquid scintillation method
Authors: Simpson, BRS
Morris, WM
Keywords: Liquid scintillation coincidence counting
Gamma-ray interaction probability
Chemistry
Mn-54
Zn-65
Issue Date: Feb-2004
Publisher: Pergamon-Elsevier Science Ltd
Citation: Simpson, BRS and Morris, WM. 2004. Direct activity determination of Mn-54 and Zn-65 by a non-extrapolation liquid scintillation method. Applied Radiation and Isotopes, vol. 60, 04 February, pp 475-479
Abstract: The measurement of Mn-54 and Zn-65 by liquid scintillation coincidence counting results in low detection efficiencies. The activity obtained from the extrapolation of efficiency data can therefore become problematic if curvature is present. The simple decay scheme exhibited by these radionuclides, with the emission of an energetic gamma ray, allows the absolute activity to be determined from 4pie-gamma data by direct calculation without the need for efficiency extrapolation. The method, which relies on determining the probability of the gamma-ray interacting with the scintillator solution, is described and validated by measurements made on Co-60
URI: http://hdl.handle.net/10204/1629
http://hdl.handle.net/10204/1629
ISSN: 0969-8043
Appears in Collections:Laser physics and technology
General science, engineering & technology

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