Scattering cross sections of liquid deuterium for ultracold neutrons: Experimental results and a calculation model

Stefan Döge; Christian Herold; Stefan Müller; Christoph Morkel; Erwin Gutsmiedl; Peter Geltenbort; Thorsten Lauer; Peter Fierlinger; Winfried Petry; Peter Böni

doi:10.1103/PhysRevB.91.214309

Scattering cross sections of liquid deuterium for ultracold neutrons: Experimental results and a calculation model

Stefan Döge, Christian Herold, Stefan Müller, Christoph Morkel, Erwin Gutsmiedl, Peter Geltenbort, Thorsten Lauer, Peter Fierlinger, Winfried Petry, Peter Böni

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Abstract

We present scattering cross sections σscatt of ultracold neutrons (UCNs) in liquid deuterium at T=20.6K, as recently measured by means of a transmission experiment. The indispensable thorough raw data treatment procedure is explained. A calculation model for coherent and incoherent scattering in liquid deuterium in the hydrodynamic limit based on appropriate physical concepts is provided and shown to fit the data well. The applicability of the incoherent approximation for UCN scattering in liquid deuterium was tested and found to deliver acceptable results.

Original language	English
Article number	214309
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	91
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.91.214309
State	Published - 24 Jun 2015

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Döge, S., Herold, C., Müller, S., Morkel, C., Gutsmiedl, E., Geltenbort, P., Lauer, T., Fierlinger, P., Petry, W., & Böni, P. (2015). Scattering cross sections of liquid deuterium for ultracold neutrons: Experimental results and a calculation model. Physical Review B - Condensed Matter and Materials Physics, 91(21), Article 214309. https://doi.org/10.1103/PhysRevB.91.214309

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abstract = "We present scattering cross sections σscatt of ultracold neutrons (UCNs) in liquid deuterium at T=20.6K, as recently measured by means of a transmission experiment. The indispensable thorough raw data treatment procedure is explained. A calculation model for coherent and incoherent scattering in liquid deuterium in the hydrodynamic limit based on appropriate physical concepts is provided and shown to fit the data well. The applicability of the incoherent approximation for UCN scattering in liquid deuterium was tested and found to deliver acceptable results.",

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AU - Döge, Stefan

AU - Herold, Christian

AU - Müller, Stefan

AU - Morkel, Christoph

AU - Gutsmiedl, Erwin

AU - Geltenbort, Peter

AU - Lauer, Thorsten

AU - Fierlinger, Peter

AU - Petry, Winfried

AU - Böni, Peter

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AB - We present scattering cross sections σscatt of ultracold neutrons (UCNs) in liquid deuterium at T=20.6K, as recently measured by means of a transmission experiment. The indispensable thorough raw data treatment procedure is explained. A calculation model for coherent and incoherent scattering in liquid deuterium in the hydrodynamic limit based on appropriate physical concepts is provided and shown to fit the data well. The applicability of the incoherent approximation for UCN scattering in liquid deuterium was tested and found to deliver acceptable results.

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Scattering cross sections of liquid deuterium for ultracold neutrons: Experimental results and a calculation model

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