Observation of edge refraction in ultra small angle neutron scattering

被引：11

作者：

Treimer, W

Strobl, M

Hilger, A

机构：

[1] Univ Appl Sci TFH Berlin, Fachbereich 2, D-13353 Berlin, Germany

[2] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

来源：

PHYSICS LETTERS A | 2002年 / 305卷 / 1-2期

关键词：

dynamical diffraction; neutron refraction; ultra small angle neutron scattering; neutron optics; Bonse-Hart camera;

D O I：

10.1016/S0375-9601(02)01391-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Slits and macroscopic objects such as edges give rise to refraction and diffraction. In this Letter we show the effect of Cd edges and slits if they are inserted between the monochromator and analyser in a double crystal diffractometer. Despite to the use of wavelengths of tens of nanometer and strong absorbing materials refraction is observed which contributes to enhanced wing intensity of the instrumental curve of the double crystal diffractometer. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：87 / 92

页数：6

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