Cold neutron imaging near Bragg edges as a tool for material research

被引：3

作者：

Josic, L. ^{[1
]}

Lehmann, E. H. ^{[1
]}

Frei, G. ^{[1
]}

Tamaki, M. ^{[2
]}

机构：

[1] Paul Scherrer Inst, Spallat Neutron Div, Wurenlingen, Switzerland

[2] Nagoya Univ, Nagoya, Aichi 4648601, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 605卷 / 1-2期

关键词：

Neutron; Imaging; Bragg edges; MCNPX; CRIPO; Polychromatic neutron beam; Monochromatic neutron beam; RADIOGRAPHY;

D O I：

10.1016/j.nima.2009.01.120

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Crystalline materials show a scattering behaviour in the energy range below 10 meV when the Bragg condition is fulfilled for lattice planes in the crystals. Investigations with a neutron imaging method require the energy bands narrowed more than for the polychromatic spectrum emitted by the cold source. This approach was used in the present work for the evaluation of cross-sections for six structural materials. It was shown that the scattering contribution dominates the data evaluations and that the texture of the materials can be detected. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：21 / 25

页数：5

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