| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1826670 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2010 | 7 Pages |
Abstract
At the ultracold neutron (UCN) source of the TRIGA research reactor in Mainz, we have measured for the first time the material optical wall-potential of cubic boron nitride. The measurements were performed with a time-of-flight (TOF) spectrometer. The samples investigated had a wall-potential of (305±15)neV. This value is in good agreement with the result extracted from neutron reflectometry data and theoretical expectations. Because of its high critical velocity for UCN and its good dielectric characteristics, cubic boron nitride coatings (isotopically enriched) will be useful for a number of applications in UCN experiments.
Keywords
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Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Yu. Sobolev, Th. Lauer, Yu. Borisov, M. Daum, N. du Fresne, L. Göltl, G. Hampel, W. Heil, A. Knecht, M. Keunecke, J.V. Kratz, T. Lang, M. Meister, Ch. Plonka-Spehr, Yu. Pokotilovski, P. Reichert, U. Schmidt, Th. Krist, N. Wiehl, J. Zenner,