Calculation of true coincidence summing correction factor for a Broad Energy Germanium (BEGe) detector using standard and fabricated sources

Ashish Gupta; M. Shareef; Munmun Twisha; Saikat Bhattacharjee; Gopal Mukherjee; Satya Samiran Nayak; Sansaptak Basu; S. Dasgupta; J. Datta; S. Bhattacharyya; A. Mukherjee

doi:10.1016/j.apradiso.2023.110966

arXiv · 2302.02776

Calculation of true coincidence summing correction factor for a Broad Energy Germanium (BEGe) detector using standard and fabricated sources

Ashish Gupta·M. Shareef·Munmun Twisha·Saikat Bhattacharjee·Gopal Mukherjee·Satya Samiran Nayak·Sansaptak Basu·S. Dasgupta·J. Datta·S. Bhattacharyya·A. Mukherjee

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Abstract

The true coincidence summing (TCS) correction factor for a Broad Energy Germanium (BEGe) detector has been calculated at far and close geometry measurement using multi-energetic radioactive $\gamma$-ray sources $^{60}$Co, $^{133}$Ba and $^{152}$Eu. The correction factors were calculated using experimental method and analytical method. Photopeak efficiency and total efficiency required to calculate the correction factor were obtained using Geant4 Monte Carlo simulation code. A few standard as well as fabricated mono-energetic sources were also included in the $\gamma$-ray efficiency measurements. The simulated efficiencies of mono-energetic $\gamma$-ray sources were matched to experimental $\gamma$-ray efficiencies by optimizing the detector parameters. The same parameters were used to obtain the photopeak and total efficiency for $\gamma$-ray of our interest and coincident $\gamma$-ray. Analytical correction factors and experimental correction factors were found in good agreement with each other.

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Ashish Gupta, M. Shareef, Munmun Twisha, Saikat Bhattacharjee, Gopal Mukherjee, Satya Samiran Nayak, Sansaptak Basu, S. Dasgupta, J. Datta, S. Bhattacharyya, A. Mukherjee. 2023-02-06. Calculation of true coincidence summing correction factor for a Broad Energy Germanium (BEGe) detector using standard and fabricated sources. https://doi.org/10.1016/j.apradiso.2023.110966

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