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
收藏
页码：S351 / S359
页数：9
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