Diffraction effects in inner-shell ionization edges

被引：19

作者：

Schattschneider, P ^{[1
]}

Nelhiebel, M ^{[1
]}

Schenner, M ^{[1
]}

Grogger, W ^{[1
]}

Hofer, F ^{[1
]}

机构：

[1] GRAZ TECH UNIV, FORSCHUNGSINST ELEKTRONENMIKROSKOPIE & FEINSTRUKT, A-8010 GRAZ, AUSTRIA

来源：

JOURNAL OF MICROSCOPY | 1996年 / 183卷

关键词：

electron energy-loss spectrometry; EELS; crystal; Bragg scattering; inelastic electron scattering; core loss;

D O I：

10.1046/j.1365-2818.1996.73076.x

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

The influences of elastic on inelastic scattering under systematic-row conditions are described in a simple way. A kinematic approach, superposing inelastic intensity-distribution profiles centered at different Bragg spots is shown to be qualitatively correct but quantitatively unsatisfying. A model considering Bragg reflection of the fast electron before and after the inelastic scattering process and thus introducing interference effects is in good agreement with experimental results. Experimentally, we recorded inelastic intensities in the diffraction pattern of an epitaxial copper foil using a PEELS spectrometer and observed energy filtered extinction contours of a copper crystal.

引用

页码：18 / 26

页数：9

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