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Measurement of Activity of an Artificial Neutrino Source in the Best Experiment by the Calorimetric Method

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Abstract

In experiments devoted to studying nonstandard neutrino properties by means of high-intensity artificial neutrino sources, a determination of source activities to a high degree of precision is required. A calorimetric system that makes it possible to measure the source activity to a precision better than 1\({\%}\) was created for measuring the activity of the neutrino source on the basis of \({}^{51}\)Cr in the BEST experiment. The structure of the calorimetric system and basic factors that affect the accuracy of the measurements are considered. The results obtained by measuring the activity of the source manufactured for the BEST experiment are presented. At the beginning of the experiment, this activity was 3.41 MCi.

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Funding

This work was performed by employing research equipment of Gallium–Germanium Neutrino Telescope Unique Scientific Facilities of Shared Use Center at Baksan Neutrino Observatory of Institute for Nuclear Research, Russian Academy of Sciences and was funded in part by the Ministry of Education and Science of Russian Federation under agreement no. 14.619.21.0009 (unique project identifier no. RFMEFI61917X0009).

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Authors and Affiliations

  1. Institute for Nuclear Research, Russian Academy of Sciences, Moscow, Russia

    J. P. Kozlova, E. P. Veretenkin, V. N. Gavrin & T. V. Ibragimova

  2. JSC SSC Research Institute of Atomic Reactors, Dimitrovgrad, Russia

    A. I. Zvir & V. A. Tarasov

Authors
  1. J. P. Kozlova
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  2. E. P. Veretenkin
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  3. V. N. Gavrin
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  4. A. I. Zvir
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  5. T. V. Ibragimova
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  6. V. A. Tarasov
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Corresponding author

Correspondence to J. P. Kozlova.

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Kozlova, J.P., Veretenkin, E.P., Gavrin, V.N. et al. Measurement of Activity of an Artificial Neutrino Source in the Best Experiment by the Calorimetric Method. Phys. Atom. Nuclei 83, 958–961 (2020). https://doi.org/10.1134/S1063778820060204

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  • DOI: https://doi.org/10.1134/S1063778820060204

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