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Precision Measurement of \({}^{144}\)Ce–\({}^{144}\)Pr Beta Spectrum by Means of Semiconductor Spectrometer

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Abstract

Precise measurement of beta spectra was always of great importance in some fundamental problems, including those of neutrino physics. The results obtained by measuring the spectrum of a \({}^{144}\)Ce–\({}^{144}\)Pr source with setups of two types to a precision substantially improved in relation to earlier investigations are presented. The correctness of a theoretical fit is tested using the shape of the \({}^{144}\)Pr (0\({}^{-}\)) \(\to{}^{144}\)Nd (1\({}^{-}\)) allowed beta transition.

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Funding

This work was supported by Russian Foundation for Basic Research (project nos. 19-02-00097 and 20-02-00571) and by Russian Science Foundation (project nos. 17-12-01009 and 21-12-00063).

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Authors and Affiliations

  1. Konstantinov Petersburg Nuclear Physics Institute, National Research Center ‘‘Kurchatov Institute’’, Gatchina, Russia

    S. V. Bakhlanov, A. V. Derbin, I. S. Drachnev, I. S. Lomskaya, I. M. Kotina, V. N. Muratova, N. V. Niyazova, M. V. Trushin & E. A. Chmel’

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  1. S. V. Bakhlanov
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  2. A. V. Derbin
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  3. I. S. Drachnev
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  4. I. S. Lomskaya
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  5. I. M. Kotina
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  6. V. N. Muratova
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  7. N. V. Niyazova
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  8. M. V. Trushin
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  9. E. A. Chmel’
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Correspondence to I. S. Drachnev.

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Bakhlanov, S.V., Derbin, A.V., Drachnev, I.S. et al. Precision Measurement of \({}^{144}\)Ce–\({}^{144}\)Pr Beta Spectrum by Means of Semiconductor Spectrometer. Phys. Atom. Nuclei 85, 936–941 (2022). https://doi.org/10.1134/S1063778823010064

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  • DOI: https://doi.org/10.1134/S1063778823010064

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