Nuclear Physics and Atomic Energy

ядерна ф≥зика 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, Russian
  Periodicity: 4 times per year

  Open access peer reviewed journal


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Nucl. Phys. At. Energy 2015, volume 16, issue 2, pages 144-151.
Section: Atomic Energy.
Received: 6.04.2015; Accepted: 11.06.2015; Published online: 20.07.2015.
PDF Full Text (ru)
https://doi.org/10.15407/jnpae2015.02.144

Influence of geometrical parameters of the VVER-1000 reactor construction elements to internals irradiation conditions

ќ. M. Pugach, V. L. Diemokhin*, S. M. Pugach, V. N. Bukanov

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

*Corresponding author. E-mail address: v.diemokhin@gmail.com

Abstract: Investigations to determine the influences of geometrical parameters of the calculational VVER-1000 reactor model to the results of internal irradiation condition determination are carried out. It is shown that the values of appropriate sensitivity matrix elements are not dependent on a height coordinate for any core level, but there is their azimuthal dependence. Maximum possible relative biases of neutron fluence due to inexact knowledge of internal geometrical parameters are obtained for the baffle and the barrel.

Keywords: VVER-1000 reactor, internals, fluence, irradiation conditions, sensitivity matrix.

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