Validation of true coincidence summing correction in Genie 2000 V3.2
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A new cascade summing correction method with the algorithm extended to include true coincidence summing effects from low-energy gamma-rays, KX-rays from Electron Capture and Internal Conversion, and to include the 511 keV positron annihilation photons has been developed and implemented in Genie 2000 V3.2 released in 2009. To validate the accuracy and precision of the extended correction method, measurements of calibrated sources containing cascading nuclides from various types of ISOCS/LabSOCS characterized High Purity Germanium detectors have been analyzed. Validation of the true coincidence summing correction factors for the extended correction method has been made by comparison to the results from the Monte Carlo code MCNP-CP. In addition, comparison between the measured and the known activities of the cascading nuclides was performed, which shows that the method is effective and accurate.
KeywordsRadiation detection Gamma-ray spectroscopy True coincidence summing
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