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True coincidence summing corrections in HPGe detectors

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Hellenic Nuclear Physics Society   

Αποθετήριο :
Annual Symposium of the Hellenic Nuclear Physics Society  | ΕΚΤ eProceedings   

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True coincidence summing corrections in HPGe detectors (EN)
Stamatelatos, Ion-Evangelos
Anagnostakis, Marios
Savva, Marilia
Vasilopoulou, Theodora
Milioni, Anastasia
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
2023-04-26
The true coincidence effect is studied in two High Purity Germanium (HPGe) detectors for a variety of isotopes, source geometries and source to detector configurations, via computational tools based on Monte–Carlo simulations. Τhe upgraded patch of MCNP code MCNP–CP and the 2018 version of PENELOPE, which take into account the decay scheme of each cascade emitter, are used to calculate the Full Energy Peak Efficiency (FEPE) for the corresponding gamma-ray energies. The true coincidence correction (TCC) factor is calculated as the ratio of the FEPE derived for each nuclide taking into consideration the true coincidence effect, to the FEPE estimated without considering the phenomenon. In all cases, a satisfactory agreement is observed between the TCC factors calculated using MCNP–CP and PENELOPE 2018. Moreover, the results of the calculations are compared against experimentally derived efficiency values. The correction factors obtained using the TrueCoinc software are applied on experimentally determined FEPE curves, based on measurements performed using reference sources, and consequently the corrected data are compared against the simulations for the "non-coincidence" case. The results of this work contribute to the validation of the computational tools and codes used to study the true coincidence effect and determine the corresponding correction factors, providing useful data for gamma–spectrometry studies of cascade emitters. (EN)
true coincidence (EN)
correction factors (EN)
Germanium detectors (EN)
gamma-spectrometry (EN)
Monte-Carlo Simulation (EN)
Annual Symposium of the Hellenic Nuclear Physics Society
Αγγλική γλώσσα
Hellenic Nuclear Physics Society (HNPS) (EN)
2654-0088
2654-007X
Annual Symposium of the Hellenic Nuclear Physics Society; Τόμ. 29 (2023); 66-73 (EL)
HNPS Advances in Nuclear Physics; Vol. 29 (2023): HNPS2022; 66-73 (EN)
Πνευματική ιδιοκτησία (c) 2023 Anastasia Milioni, Theodora Vasilopoulou, Marilia I. Savva, Marios J. Anagnostakis, Ion E. Stamatelatos (EL)
http://creativecommons.org/licenses/by-nc-nd/4.0
Hellenic Nuclear Physics Society
Annual Symposium of the Hellenic Nuclear Physics Society
Oral contributions



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