Double Bent Crystal Monochromator for High Resolution Neutron Powder Diffraction

被引：4

作者：

Mikula, P. ^{[1
]}

Vrana, M. ^{[1
]}

Saroun, J. ^{[1
]}

Seong, B. S. ^{[2
]}

Woo, W. ^{[2
]}

机构：

[1] Nuclear Phys Inst ASCR, Vvi, Rez 25068, Czech Republic

[2] Korea Atom Energy Res Inst, Neutron Sci Div, Taejon 305353, South Korea

来源：

POWDER DIFFRACTION | 2013年 / 28卷

基金：

欧盟第七框架计划;

关键词：

neutron diffraction; dispersive monochromator; powder diffraction; THERMAL-NEUTRONS;

D O I：

10.1017/S0885715613000912

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Recent results of focusing and reflectivity properties of the dispersive double-bent-crystal monochromator have shown that it could be succesfully used in high resolution neutron diffraction experiment. By using a standard polycrystalline sample of alpha-Fe, the resolution of the diffraction performance in the vicinity of the scattering angle 2 theta(S)=90 degrees for the neutron wavelength lambda= 0.162 nm was tested in detail. It has been found that for thin (1.3 mm) bent second crystal the angular resolution represented by FWHM of diffraction profiles was 1x10(-3) rad for 211 and 200 reflections and about 3x10(-3) rad for 220 reflection.

引用

页码：S351 / S359

页数：9

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