Nuclear Physics and Atomic Energy


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, Russian
  Periodicity: 4 times per year

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Nucl. Phys. At. Energy 2019, volume 20, issue 2, pages 126-130.
Section: Nuclear Physics.
Received: 08.04.2019; Accepted: 11.07.2019; Published online: 27.08.2019.
PDF Full text (ua)
https://doi.org/10.15407/jnpae2019.02.126

Photofission of 238U with bremsstrahlung in wide interval of values of the boundary energy

V. O. Zheltonozhsky1, A. M. Savrasov1, V. . Plujko1,2, O. M. Gorbachenko2, K. M. Solodovnyk2,*

1 Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2 Taras Shevchenko National University of Kyiv, Kyiv, Ukraine


*Corresponding author. E-mail address: e.solodovnyk@gmail.com

Abstract: In experiments for photofission of 238U with bremsstrahlung, the isomeric yield ratios for 133Xe at the end-point energies Ee = 6.25, 14.5 and 18 MeV and for 135Xe at Ee = 6.25, 12.5 and 14.5 MeV were measured. Isomeric yield ratios were obtained taking into account the contribution from beta-decay of isobaric nuclei to the yields of investigated isotopes. Average angular moments of investigated fission fragments were determined using the statistical model of decay.

Keywords: nucleus, quasiparticle, phonon, probabilities of beta-transitions, spectroscopic characteristics.

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