High-resolution neutron powder diffractometry on samples of small dimensions
High-resolution neutron powder diffractometry on samples of small dimensions
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DOI：
10.4028/www.scientific.net/msf.228-231.269
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发表时间：
1996-01-01
期刊：
影响因子：
--
通讯作者：
Wagner, V
中科院分区：
文献类型：
--
作者：
Mikula, P;Vrana, M;Wagner, V
本文介绍了在小尺寸多晶或粉末样品的衍射实验中，有效地利用圆柱形弯曲的完整晶体作为中子光学元件-单色器和分析器的一些结果。由于在真实的和动量空间中聚焦，与使用常规镶嵌晶体的性能相比，使用弯曲完美晶体的衍射性能可以在有限的a范围内显示出其亮度或分辨率的相当大的增益。
Some results of an efficient use of cylindrically bent perfect crystals as neutron optical elements-monochromators and analyzers in diffraction experiments with polycrystalline or powder samples of small dimensions are presented. Thanks to focusing in real and momentum space, the diffraction performance employing bent perfect crystals can in a limited a-range show a considerable gain in its luminosity or resolution in comparison with the performance employing conventional mosaic crystals.