Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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N. F. Mitrokhovich<sup>1

1</sup>Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: Based on measuring of double and triple coincidences γ-quanta, conversion electrons (СЕ) and β-particles on different spectrum parts Δβ with electrons (including the electrons of near-zero energy e_o-coincidence (γ, CE, Δβ)-(e, e_o) and coincidence γβе_о) the output of "shake-off" electrons is measured per on act β-decay ¹⁵²Eu for parts of β-spectrum with energies 77, 125, 300 and 350 keV. Intensity value of "shake-off" electrons (energetic spectrum of "shake-off"-electrons), and also the output of secondly-emissive e_o-electrons from "shake-off"-electrons on act β-decay is given for these energies. It is proved that β-particles and “shake-off” electrons evoked by them are strongly correlated in direction of flight, demonstrating predominantly emitting to the same half-sphere.

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