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Cubic boron nitride: a new prospective material for ultracold neutron application

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 (30...

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Bibliographic Details
Main Authors: Sobolev, Yu. G. (Author) , Lauer, Thorsten (Author) , Borisov, Yu. (Author) , Daum, M. (Author) , du Fresne, N. (Author) , Goeltl, L. (Author) , Hampel, G. (Author) , Heil, W. (Author) , Knecht, A. (Author) , Keunecke, M. (Author) , Kratz, Jens-Volker (Author) , Lang, T. (Author) , Meister, M. (Author) , Plonka-Spehr, Ch. (Author) , Pokotilovskij, Ju. N. (Author) , Reichert, P. (Author) , Schmidt, Ulrich (Author) , Krist, Th. (Author) , Wiehl, N. (Author) , Zenner, Johannes (Author)
Format: Article (Journal)
Language:English
Published: 2010
In: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2010, Volume: 614, Issue: 3, Pages: 461-467
ISSN:1872-9576
DOI:10.1016/j.nima.2009.12.035
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nima.2009.12.035
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0168900209023523
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Author Notes: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
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Summary: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.
Item Description:Available online 22 December 2009
Gesehen am 11.08.2023
Physical Description:Online Resource
ISSN:1872-9576
DOI:10.1016/j.nima.2009.12.035

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