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首页> 外文期刊>Physical review >Scattering cross sections of liquid deuterium for ultracold neutrons: Experimental results and a calculation model
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Scattering cross sections of liquid deuterium for ultracold neutrons: Experimental results and a calculation model

机译：超冷中子液态氘的散射截面：实验结果和计算模型

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摘要

We present scattering cross sections σ_(scatt) of ultracold neutrons (UCNs) in liquid deuterium at T = 20.6 K, 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.
机译：我们介绍了液态氘中T = 20.6 K处的超冷中子（UCNs）的散射截面σ_（scatt），最近通过透射实验对其进行了测量。解释了必不可少的原始数据处理程序。提供了一种基于适当物理概念的液态氘在水动力极限内的相干和非相干散射的计算模型，并表明该模型很好地拟合了数据。测试了非相干近似对液态氘中UCN散射的适用性，发现该方法可提供可接受的结果。

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  • 来源
    《Physical review》 |2015年第21期|214309.1-214309.9|共9页
  • 作者

    Stefan Doege; Christian Herold; Stefan Mueller; Christoph Morkel; Erwin Gutsmiedl; Peter Geltenbort; Thorsten Lauer; Peter Fierlinger; Winfried Petry; Peter Boeni;

  • 作者单位

    Physik Department, Technische Universitaet Muenchen, D-85748 Garching, Germany ,Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France ,Ecole Doctorale de Physique, Universite Grenoble Alpes, 38402 Saint Martin d'Heres, France;

    RWTH Aachen, NET, D-52062 Aachen, Germany;

    Physik Department, Technische Universitaet Muenchen, D-85748 Garching, Germany;

    Physik Department, Technische Universitaet Muenchen, D-85748 Garching, Germany;

    Physik Department, Technische Universitaet Muenchen, D-85748 Garching, Germany;

    Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France;

    Forschungsneutronenquelle Heinz Maier-Leibnitz, Technische Universitaet Muenchen, D-85748 Garching, Germany;

    Physik Department, Technische Universitaet Muenchen, D-85748 Garching, Germany;

    Forschungsneutronenquelle Heinz Maier-Leibnitz, Technische Universitaet Muenchen, D-85748 Garching, Germany;

    Physik Department, Technische Universitaet Muenchen, D-85748 Garching, Germany;

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  • 正文语种 eng
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  • 关键词

    neutron scattering; moderators; molecular liquids;

    机译：中子散射主持人;分子液体;

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