行表面声波对非定常中子衍射的新实验

IF 1.6 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

The European Physical Journal B Pub Date : 2024-12-10 DOI:10.1140/epjb/s10051-024-00829-7

G. V. Kulin, A. I. Frank, N. V. Rebrova, M. A. Zakharov, P. Gutfreund, Yu. N. Khaydukov, L. Ortega, D. V. Roshchupkin, L. I. Goray

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引用次数: 0

摘要

本文介绍了表面声波对中子衍射的新实验结果。测量在飞行时间模式下以固定入射角进行，这使得在表面声波频率从35到117 MHz的宽范围内研究中子波长的衍射图成为可能。在许多情况下，不仅观察到一级衍射波，而且观察到二级衍射波。衍射波的角分布和振幅的测量结果与计算结果吻合得很好。对中子色散定律在大加速度物质运动中的适用范围作了新的估计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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New experiment on non-stationary neutron diffraction by a traveling surface acoustic wave

The results of a new experiment on neutron diffraction by surface acoustic waves are presented. The measurements were carried out at a fixed incident angle in the time-of-flight mode, which made it possible to study the diffraction pattern in a wide range of neutron wavelengths at surface acoustic wave frequencies from 35 to 117 MHz. In a number of cases, diffracted waves of not only the first but also the second order were observed. The measurement results of both the angular distribution of diffracted waves and their amplitudes are in satisfactory agreement with the calculations. A new estimation has been obtained for the range of applicability of the dispersion law of neutron waves in matter moving with large acceleration.

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