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首页> 外文期刊>Physica, B. Condensed Matter >Diffraction of ultracold neutrons on a moving grating and neutron focusing in time
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Diffraction of ultracold neutrons on a moving grating and neutron focusing in time

机译:超冷中子在移动光栅上的衍射和中子及时聚焦

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摘要

We report the results of two experiments on non-stationary neutron optics. In the first one we measured the spectrum of ultracold neutrons (UCN) diffracted on a phase grating moving across the beam. A discrete spectrum is found in good agreement with theory. This purely quantum effect may be interpreted as resulting from phase modulation of the neutron wave. In the second experiment we observed the UCN focusing in time. Periodical acceleration and deceleration of neutrons is produced by diffraction on a phase grating with a variable space period. (C) 2004 Elsevier B.V. All rights reserved.
机译:我们报告了两个非稳态中子光学实验的结果。在第一个中,我们测量了在跨束移动的相位光栅上衍射的超冷中子(UCN)的光谱。发现离散光谱与理论非常吻合。这种纯粹的量子效应可以解释为中子波的相位调制引起的。在第二个实验中,我们观察了UCN的及时聚焦。中子的周期性加速和减速是通过在具有可变空间周期的相位光栅上进行衍射而产生的。 (C)2004 Elsevier B.V.保留所有权利。

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