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The SFiNx Detector System

  • PHYSICS OF ELEMENTARY PARTICLES AND ATOMIC NUCLEI. EXPERIMENT
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Abstract

A new detector system for investigating the properties of spontaneous fission of short-lived transuranium nuclei has been created. This system consists of an assembly of double-sided silicon strip detectors surrounded by 116 proportional neutrons counters filled with 3He. The neutron registration efficiency is 54.7 ± 0.1%. The detector system is tested in an experiment investigating the characteristics of spontaneous fission of the 252No isotope. The experimental data on neutron yields are compared with previously published results. The average number of neutrons per fission act (\(\bar {\nu }\) = 4.25 \( \pm \) 0.09) and the multiplicity distribution of prompt neutrons are obtained. The true form of the neutron distribution is reconstructed via a statistical regularization.

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Funding

This work was supported by the Russian Foundation for Basic Research, project no. 18-52-15004, and the Joint Institute for Nuclear Research, grant no. 21-502-09 for young scientists (M.S. Tezekbayeva).

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, Russia

    A. V. Isaev, A. V. Yeremin, N. I. Zamyatin, I. N. Izosimov, A. A. Kuznetsova, O. N. Malyshev, R. S. Mukhin, A. G. Popeko, Yu. A. Popov, B. Sailaubekov, A. I. Svirikhin, E. A. Sokol, M. S. Tezekbayeva, D. A. Testov, M. L. Chelnokov & V. I. Chepigin

  2. Dubna State University, Dubna, Russia

    A. V. Yeremin, O. N. Malyshev, A. G. Popeko, Yu. A. Popov & A. I. Svirikhin

  3. Institute of Nuclear Physics, Almaty, Republic of Kazakhstan

    B. Sailaubekov & M. S. Tezekbayeva

  4. Comenius University, Bratislava, Slovakia

    S. Antalic & P. Mosat

  5. Université de Strasbourg, CNRS, IPHC, Strasbourg, France

    P. Brionnet, B. Gall, O. Dorvaux, K. Kessaci & A. Sellam

  6. IJCLab, IN2P3-CNRS, Université Paris-Saclay, Orsay, France

    A. Lopez-Martens & K. Hauschild

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  1. A. V. Isaev
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  2. A. V. Yeremin
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  3. N. I. Zamyatin
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  4. I. N. Izosimov
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  5. A. A. Kuznetsova
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  6. O. N. Malyshev
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  7. R. S. Mukhin
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  8. A. G. Popeko
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  9. Yu. A. Popov
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  10. B. Sailaubekov
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  11. A. I. Svirikhin
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  12. E. A. Sokol
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  13. M. S. Tezekbayeva
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  14. D. A. Testov
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  15. M. L. Chelnokov
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  16. V. I. Chepigin
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  17. S. Antalic
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  18. P. Mosat
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  19. P. Brionnet
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  20. B. Gall
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  21. O. Dorvaux
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  22. K. Kessaci
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  23. A. Sellam
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  24. A. Lopez-Martens
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  25. K. Hauschild
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Correspondence to A. V. Isaev.

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Translated by E. Baldina

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Isaev, A.V., Yeremin, A.V., Zamyatin, N.I. et al. The SFiNx Detector System. Phys. Part. Nuclei Lett. 19, 37–45 (2022). https://doi.org/10.1134/S154747712201006X

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  • DOI: https://doi.org/10.1134/S154747712201006X

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