کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1826670 | 1027389 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cubic boron nitride: A new prospective material for ultracold neutron application
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 614, Issue 3, 11 March 2010, Pages 461–467
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 614, Issue 3, 11 March 2010, Pages 461–467
نویسندگان
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,