Title :
The Zero Model by Using Coincidence Scintillation (ZoMBieS) Method of Absolute Radioactivity Measurement
Author :
Bignell, Lindsey J. ; Li Mo ; Steele, Tristan ; Hashemi-Nezhad, S. Reza
Author_Institution :
Activity Stand. Lab., Australian Nucl. Sci. & Technol. Organ., Lucas Heights, NSW, Australia
Abstract :
A new method for the absolute radioactivity measurement of radionuclides using a liquid scintillation detector comprising three photomultipliers has been described. The method does not contain any a priori model of the photomultiplier detection efficiency and uses a modified Compton Coincidence technique, therefore it has been named the Zero Model By using Coincidence Scintillation (ZoMBieS) method. Validation measurements of the activity of a 63Ni source against the Triple to Double Coincidence Ratio method are presented and the results agree within their standard uncertainties.
Keywords :
coincidence techniques; liquid scintillation detectors; photomultipliers; radioactivity measurement; radioisotopes; 63Ni source; absolute radioactivity measurement; liquid scintillation detector; modified Compton coincidence technique; photomultiplier detection efficiency; radionuclides; triple-to-double coincidence ratio method; validation measurements; zero model by using coincidence scintillation method; Detectors; Liquids; Mathematical model; Measurement uncertainty; Solids; Standards; Uncertainty; Liquid scintillators; scintillator characterization; standardization;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2013.2275990
