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

被引：0

作者：

Salamatov, Yu. A. ^{[1
]}

Kravtsov, E. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Mikheev Inst Phys Met, Ural Branch, Ekaterinburg 620137, Russia

来源：

JOURNAL OF SURFACE INVESTIGATION | 2023年 / 17卷 / 04期

关键词：

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; PHASE;

D O I：

10.1134/S1027451023040304

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The application of the method of phase-amplitude functions to the calculation of neutron-transmission processes in layered media containing highly absorbent elements is described. This method allows us to simultaneously calculate the reflection, transmission and absorption coefficients for neutrons. It requires less computing resources than 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 transmission for layered resonator-type systems with a potential well are given.

引用

页码：874 / 880

页数：7

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