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Significance of the corrections for accidental coincidences in liquid scintillation counting measurements

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Abstract

Methods for the evaluation of the accidental coincidences counting rates in triple-to-double coincidences ratio (TDCR) liquid scintillation (LS) measurements have been proposed recently. This study shows how these corrections can be extended to two detector systems, such as commercial LS counters, or four-detector systems used for the compton source efficiency tracing (CSET) method. The significance of performing corrections for accidental coincidences in low-activity LS counting or TDCR measurements is demonstrated. The impact of accidental coincidences on the determination of half-life of radioisotopes is also shown.

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Acknowledgements

The authors thank Dr Philippe Gervais from CEA/SHFJ for providing sample of 18F solution. This work was funded by the French national metrology institute: Laboratoire National de Métrologie et d’Essais (LNE). The authors are indebted to Dr Karsten Kossert for providing the 53Mn sample. The measurement of Po-209 samples were performed in the framework of DORN project. The authors thank Margot Corbel from CEA/LNHB for the preparation of the 209Po sample.

Funding

This work is supported by the Bulgarian National Scientific Research Fund under contract KP-06-H38/9 from 06.12.19 (TDCX).

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Authors and Affiliations

  1. Faculty of Physics, Sofia University ‘‘St. Kliment Ohridski’’, 5 James Bourchier Blvd, 1164, Sofia, Bulgaria

    Chavdar Dutsov, Philippe Cassette & Krasimir Mitev

  2. Paul Scherrer Institute, CH-5232, Villigen, Switzerland

    Chavdar Dutsov

  3. Laboratoire National Henri Becquerel, CEA, LIST, LNE-LNHB, Université Paris-Saclay, 91120, Palaiseau, France

    Benoît Sabot

Authors
  1. Chavdar Dutsov
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  2. Benoît Sabot
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  3. Philippe Cassette
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  4. Krasimir Mitev
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Correspondence to Chavdar Dutsov.

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Dutsov, C., Sabot, B., Cassette, P. et al. Significance of the corrections for accidental coincidences in liquid scintillation counting measurements. J Radioanal Nucl Chem 331, 3303–3311 (2022). https://doi.org/10.1007/s10967-022-08316-y

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  • DOI: https://doi.org/10.1007/s10967-022-08316-y

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