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RESEARCH PRODUCT
Transmission of ultra-cold neutrons through guides coated with materials of high optical potential
Daum M.Daum M.Franke B.Franke B.Geltenbort P.Gutsmiedl E.Ivanov S.Karch J.Kasprzak M.Kasprzak M.Kirch K.Kirch K.Kraft A.Kraft A.Lauer T.Lauer T.Lauss B.Müller A. R.Paul S.Schmidt-wellenburg P.Zechlau T.Zechlau T.Zsigmond G.subject
PhysicsNuclear and High Energy Physics010308 nuclear & particles physicsAnalytical chemistrychemistry.chemical_elementReplication (microscopy)01 natural sciencesOptical potential3. Good healthTransmission propertiesTransmission (telecommunications)chemistry0103 physical sciencesNeutronBeryllium010306 general physicsInstrumentationQuartzGlass tubedescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-03-01 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |