Neutron resonances in planar waveguides

TL;DR

This paper reports experimental measurements of neutron resonance widths in planar waveguides using a time-of-flight reflectometer, comparing results with theory and discussing applications for layered nanostructure analysis.

Contribution

It presents the first experimental investigation of neutron resonance widths in planar waveguides with comparison to theoretical models.

Findings

Neutron resonance widths were successfully measured using the REMUR reflectometer.

The experimental results showed good agreement with theoretical calculations.

Potential applications for layered nanostructure investigations are discussed.

Abstract

Results of experimental investigations of a neutron resonances width in planar waveguides using the time-of-flight reflectometer REMUR of the IBR-2 pulsed reactor are reported and comparison with theoretical calculations is presented. The intensity of the neutron microbeam emitted from the waveguide edge was registered as a function of the neutron wavelength and the incident beam angular divergence. The possible applications of this method for the investigations of layered nanostructures are discussed.