Theoretical Study of Neutron Reflection from Thin Films and Layered Nanostructures Containing Highly Absorbing Gadolinium and Boron Isotopes

Yu. A. Salamatov; Саламатов Ю. А.; E. A. Kravtsov; Кравцов Е. А.

doi:10.31857/S1028096023080125

Theoretical Study of Neutron Reflection from Thin Films and Layered Nanostructures Containing Highly Absorbing Gadolinium and Boron Isotopes

Autores: Salamatov Y.¹, Kravtsov E.¹
Afiliações:
1. M.N. Mikheev Institute of Metal Physics of Ural Branch RAS
Edição: Nº 8 (2023)
Páginas: 32-39
Seção: Articles
URL: https://journals.rcsi.science/1028-0960/article/view/137794
DOI: https://doi.org/10.31857/S1028096023080125
EDN: https://elibrary.ru/OELHUM
ID: 137794

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Resumo

The application of the method of phase-amplitude functions to the calculation of neutron propagation processes in layered media containing highly absorbing elements is described. This method allows us to simultaneously calculate the reflection, transmission and absorption coefficients of neutrons. It requires less computing resources than the other algorithms. A generalization of the method to matrix equations used in polarized neutron reflectometry is also presented. Examples of calculations of various characteristics of neutron propagation for layered resonator-type systems with a potential well are given.

Palavras-chave

neutron reflectometry, neutron absorption, neutron scattering length density, resonant interaction, neutron detectors, phase problem, planar nanostructures, superlattice, interaction potential, nonlinear differential equation, Runge–Kutta method, Levenberg–Marquardt algorithm, polarized neutron reflectometry, nonlinear matrix equation.

Sobre autores

Yu. Salamatov

M.N. Mikheev Institute of Metal Physics of Ural Branch RAS

Autor responsável pela correspondência
Email: salamatov@imp.uran.ru
Russia, 620137, Ekaterinburg

E. Kravtsov

M.N. Mikheev Institute of Metal Physics of Ural Branch RAS

Autor responsável pela correspondência
Email: kravtsov@imp.uran.ru
Russia, 620137, Ekaterinburg

Bibliografia

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