Coincidence summing in gamma and X-ray spectrometry
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Cited by (37)
A benchmark for Monte Carlo simulations in gamma-ray spectrometry Part II: True coincidence summing correction factors
2024, Applied Radiation and IsotopesCoincidence summing correction for a voluminous <sup>152</sup>Eu source
2020, Nuclear Engineering and TechnologySolid scintillation analysis
2020, Handbook of Radioactivity Analysis: Volume 1: Radiation Physics and DetectorsNuclear Data Sheets for A = 139
2016, Nuclear Data SheetsA trapezoid approach for the experimental total-to-peak efficiency curve used in the determination of true coincidence summing correction factors in a HPGe detector
2014, Radiation Physics and ChemistryCitation Excerpt :For example, ignoring TCS effects can lead to a typical error with a factor of 2 in the determination of 60Co activity when a well-type Ge detector is used (Laborie et al., 2000). In literature, the problem of true coincidence has been investigated for both point and voluminous sources by many researchers (Andreev et al., 1973; Debertin and Helmer 1988; Moens et al., 1982; Korun and Martincic 1993; Kolotov et al., 1996; Sima, 2000; Korun, 2001; Blaauw and Gelsema 2003; Vidmar and Korun 2006; Arnold and Sima 2006; Vidmar et al., 2007). A method was developed to characterize a well-type detector with using a full-energy peak (FEP) and a peak-to-total (PTT) efficiency curves that were determined using coincident photons from a nuclide by Blaauw who used a two-parameter function to describe the energy dependence of PTT ratio and extended it to volume sources (Blaauw, 1998).
Simplified methods for coincidence summing corrections in HPGe efficiency calibration
2012, Applied Radiation and IsotopesCitation Excerpt :For n-type detectors other challenges arise; the low energy 14 keV gamma photon of 57Co contributes to summing-out of the 122 keV peak and summing-in to the 136 keV peak, and coincidence summing between gammas and x-rays, as it occurs for 88Y and 139Ce, becomes significant. Although corrections for some of these cases have been described earlier (Korun and Martincic, 1993; Novkovic et al., 2007), this technical note presents simplified methods to correct for summing effects in 57Co, as well as for summing of gammas with x-rays having energies up to 40 keV for n-type HPGe detectors. Three lead-shielded coaxial HPGe detectors were used for this project: a 50% relative-efficiency n-type detector with a carbon fiber window (denoted G7), a 33% n-type detector with a beryllium window (G3), and a 44% p-type detector (G6) serving as a control.