Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8176933 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2014 | 7 Pages |
Abstract
We have measured the transmission of ultra-cold neutrons (UCN) through tubes coated on the inside with materials of high optical potentials. The best transmission value, T, normalised to 1 m long UCN guides was obtained with a beryllium coated quartz guide, T=(99.0±1.0)%. Furthermore, excellent transmission coefficients were found for (i) a glass tube coated with NiMo(88/12), T=(97.3 ±0.6)%, (ii) a NiMo(85/15) guide made by the replication technique, T=(97.1 ±0.8)% and (iii) a glass guide coated with NiMo(82/18), T=(96.3 ±2.1)%. The results demonstrate that UCN guides made from coated glass tubes have the same excellent transmission properties as those produced with the replication technique. They are, however, significantly cheaper.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
M. Daum, B. Franke, P. Geltenbort, E. Gutsmiedl, S. Ivanov, J. Karch, M. Kasprzak, K. Kirch, A. Kraft, T. Lauer, B. Lauss, A.R. Müller, S. Paul, P. Schmidt-Wellenburg, T. Zechlau, G. Zsigmond,