Journal Highlight: REFLEX: a program for the analysis of specular X‐ray and neutron reflectivity data

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  • Published: Mar 18, 2019
  • Author: spectroscopyNOW
  • Channels: Chemometrics & Informatics
thumbnail image: Journal Highlight: REFLEX: a program for the analysis of specular X‐ray and neutron reflectivity data

A freeware standalone program named REFLEX dedicated to the simulation and analysis of X-ray and neutron reflectivity from multilayers that was first written two decades ago with constant improvements since, has been published for the first time.

Vignaud, G. and Gibaud, A. (2019). REFLEX: a program for the analysis of specular X‐ray and neutron reflectivity data. Journal of Applied Crystallography 52(1) 201-213

Abstract: The use of X‐ray and neutron reflectivity has been generalized worldwide for scientists who want to determine specific physical properties (such as electron‐density profile, scattering‐length density, roughness and thickness) of films less than 200 nm thick deposited on a substrate. This paper describes a freeware program named REFLEX, which is a standalone program dedicated to the simulation and analysis of X‐ray and neutron reflectivity from multilayers. This program was first written two decades ago and has been constantly improved since, but never published until now. The latest version of REFLEX covers generalized types of calculation of reflectivity curves including both neutron and X‐ray reflectivity. In the case of X‐rays, the program can deal with both s and p polarization, which is quite important in the soft X‐ray region where the two polarizations can yield different results. Neutron reflectivity is calculated within the framework of non‐spin‐polarized neutrons. REFLEX has also been designed to include any type of fluid (such as supercritical CO2) on top of the analysed film and includes corrections of the footprint effect for analysis on an absolute scale.

  • This paper is free to view for all users registered on spectroscopyNOW.com until the end of April 2019.
    After this time, you can purchase it using Pay-Per-View on Wiley Online Library.

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