Allowing for a Shift of an Absorbing Element Relative to a Node of the Regular Lattice in Reactor Calculations by the Hetergeneous Method

The effect of an absorbing element being displaced relative to a regular lattice node on the neutron balance in a reactor is considered. A way of accounting for a displacement based on the use of the dipole component of the neutron flux in a reactor calculation by the heterogeneous method is describ...

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Bibliographic Details
Published in:Atomic energy (New York, N.Y.) N.Y.), 2022-08, Vol.132 (4), p.251-254
Main Authors: Aristarkhova, E. A., Malofeev, V. M.
Format: Article
Language:English
Subjects:
Approximation
Boundary conditions
Codes
Dipoles
Displacement
Energy industry
Hadrons
Heavy Ions
Mathematical analysis
Neutron flux
Nuclear Chemistry
Nuclear Energy
Nuclear Physics
Nuclear power plants
Physics
Physics and Astronomy
Reactors
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Summary:The effect of an absorbing element being displaced relative to a regular lattice node on the neutron balance in a reactor is considered. A way of accounting for a displacement based on the use of the dipole component of the neutron flux in a reactor calculation by the heterogeneous method is described. The proposed method is shown to be effective in calculations performed for fuel assemblies with displaced absorbing elements. Calculations based on the UNK and MCNP5 codes are compared with one another.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-023-00936-1