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Understanding kinetic behaviour of TRIGA reactor core

Understanding kinetic behaviour of TRIGA reactor core
Rashida Yasmeen; Mohammad Sayem Mahmood
International Journal of Nuclear Energy Science and Technology, Vol. 11, No. 3 (2017) pp. 265 - 271
The kinetic parameters govern the transient behaviour of a nuclear reactor. Estimation of these parameters has great importance for the safe design and operation of a nuclear reactor. In order to understand the kinetic behaviour of TRIGA core, the influence of graphite dummy elements, absorber materials and beam ports on kinetic parameters has been studied. To do so, the effective delayed neutron fraction (β<SUB align="right">eff), prompt removal lifetime (ℓ) and mean neutron generation time (Λ) have been calculated for an infinite system of LEU fuel cells. The investigation has been extended to four different cases of TRIGA reactor core. Monte Carlo simulation has been carried out to compute the kinetic parameters by Monte Carlo code MCNP5. The β<SUB align="right">eff value remains unchanged but the ℓ and Λ values are found to be sensitive to the local perturbations of core components.

Authors:   Rashida Yasmeen; Mohammad Sayem Mahmood
Journal:   International Journal of Nuclear Energy Science and Technology
Volume:   11
edition:   3
Year:   2017
Pages:   265
DOI:   10.1504/IJNEST.2017.088072
Publication date:   21-Nov-2017
Facts, background information, dossiers
  • behaviour
  • TRIGA
  • neutron
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