Diffuse reflection of ultracold neutrons from low-roughness surfaces

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Atchison, F.; Daum, M.; Henneck, R.; Heule, S.; Horisberger, M.; Kasprzak, M.; Kirch, K.; Knecht, A.; Kużniak, M.; Lauss, B.; Mtchedlishvili, A.; Meier, M.; Petzoldt, G.; Plonka-Spehr, C.; Schelldorfer, R.; Straumann, U.; Zsigmond, G.;

We report a measurement of the reflection of ultracold neutrons from flat, large-area plates of different Fermi potential materials with low surface roughness. The results were used to test two diffuse reflection models, the well-known Lambert model and the micro-roughn... View more
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