Abstract
Neutron optical devices, such as neutron guides, apply mirrors where multiple total reflections of neutrons takes place. Materials more light and flexible than glass have never been used as a substrate of the neutron mirrors. The present work deals with neutron reflectivity measurements performed for three nickel mirrors. While one of them is a glass plate coated with a NiCr film, the other two mirrors are on plexiglas substrates coated by either NiCr or 58Ni films. The incident beam covered a neutron wavelength range from 0.05-0.4 nm. The results of the present measurements are in favour of the idea of using acrylic glass as a substrate for nickel mirrors.
Published Version
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