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首页> 外文期刊>Annals of nuclear energy >EVALUATION OF COLD NEUTRON SCATTERING CROSS SECTIONS FOR LIGHT AND HEAVY WATER
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EVALUATION OF COLD NEUTRON SCATTERING CROSS SECTIONS FOR LIGHT AND HEAVY WATER

机译：轻水和重水的冷中子散射截面评估

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摘要

Cross section models for cold and thermal neutron scattering from light and heavy water are developed. They are based on the proper treatment of molecular motions in the water in terms of the diffusive and oscillatory translational motions of a water molecule and the intermolecular space-time correlations for highly bonded molecules. Intramolecular motions such as hindered rotations and internal harmonic vibrations are also included. The total and differential scattering cross sections are calculated for a wide range of incident neutron energies from very cold to epithermal. Good agreement with available experimental results permits us to generate basic cross section libraries for the evaluation of cold and ultracold neutron production.
机译：开发了用于从轻水和重水散射冷中子和热中子的截面模型。它们基于水分子的扩散和振荡平移运动以及高度键合分子的分子间时空相关性对水中分子运动的正确处理。还包括分子内运动，例如受阻旋转和内部谐波振动。计算了从很冷到超热的各种入射中子能量的总散射散射截面和微分散射截面。与现有实验结果的良好一致性使我们能够生成基本截面库，以评估冷中子和超冷中子的产生。

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