Abstract—
A 4π β spectrometer consists of two Si(Li) detectors with a sensitive region that is more than 8-mm thick. Using this total-absorption spectrometer it is possible to make a direct measurement of β spectra without correcting the response function for the electron backscattering from the crystal surface. The β spectra of transitions to the excited states of daughter nuclei have been measured using an additional 3'' BGO detector of γ rays, which is connected in coincidence with the pair of Si(Li) detectors.
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This work was supported by the Russian Foundation for Basic Research (project nos. 19-02-00097 and 20-02-00571) and the Russian Science Foundation (project no. 17-12-01009).
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Translated by N. Goryacheva
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Alekseev, I.E., Bakhlanov, S.V., Derbin, A.V. et al. A Silicon 4π Spectrometer of β-Decay Electrons with Energies of up to 3 MeV. Instrum Exp Tech 64, 190–194 (2021). https://doi.org/10.1134/S002044122101019X
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DOI: https://doi.org/10.1134/S002044122101019X