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 2016, volume 17, issue 4, pages 411-417.
Section: Engineering and Methods of Experiment.
Received: 10.11.2016; Accepted: 14.02.2017; Published online: 10.04.2017.
PDF Full text (ua)
https://doi.org/10.15407/jnpae2016.04.411

Determination of the total neutron cross section using average energy shift method for filtered neutron beam

. . Gritzay, . K. Grymalo*, V. A. Pshenychnyi

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

*Corresponding author. E-mail address: grimalo.a@gmail.com

Abstract: Development of the technique for determination of the total neutron cross sections from the measurements of sample transmission by filtered neutrons, scattered on hydrogen is described. One of the methods of the transmission determination TH52Cr from the measurements of 52Cr sample, using average energy shift method for filtered neutron beam is presented. Using two methods of the experimental data processing, one of which is presented in this paper (another in [1]), there is presented a set of transmissions, obtained for different samples and for different measurement angles. Two methods are fundamentally different; therefore, we can consider the obtained processing results, using these methods as independent. In future, obtained set of transmissions is planned to be used for determination of the parameters E0, n and R/ of the resonance 52Cr at the energy of 50 keV.

Keywords: total neutron cross section, scattering sample, scattering angle, hydrogen.

References:

1. .. Gritzay, .K. Grymalo, V.A. Pshenychnyi. Analytical expressions for calculations of scattered neutrons from the sample (scatterer) at small angles. Yaderna fizyka ta energetyka (Nucl. Phys. At. Energy) 16(3) (2015) 303. (Ukr)

2. J. Briesmeister. MCNP General Monte Carlo Code N Particle Transport Code Version 4C. Report LA-13709- (1993).

3. .. Gritzay, M.M. Vakulenko. Development of the code for filter calculation. Proc. of the 4-th Int. Conf. on Current Problems in Nuclear Physics and Atomic Energy NPAE-Kyiv2012, Kyiv, 3 - 7 Sept. 2012 (Kyiv, 2013) p. 426.