MULTI-ANGLE RECONSTRUCTION OF ENERGY DISPERSIVE X-RAY DIFFRACTION SPECTRA

被引：0

作者：

Marticke, F. ^{[1
,2
]}

Paulus, C. ^{[1
]}

Montemont, G. ^{[1
]}

Michel, O. ^{[2
]}

Mars, J. I. ^{[2
]}

Verger, L. ^{[1
]}

机构：

[1] CEA, LETI, Minatec Campus,17 Rue Martyrs, F-38054 Grenoble 09, France

[2] Gipsa Lab, 11 Rue Math,Domaine Univ, F-38402 St Martin Dheres, France

来源：

2014 6TH WORKSHOP ON HYPERSPECTRAL IMAGE AND SIGNAL PROCESSING: EVOLUTION IN REMOTE SENSING (WHISPERS) | 2014年

关键词：

Energy dispersive X-ray diffraction; Spectroscopic detector; Reconstruction; Inverse problems; Detective quantum efficiency;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

X-ray diffraction is a powerful technique to provide information on the molecular structure of samples. Energy dispersive X-ray diffraction (EDXRD) spectra are classically measured at one single fixed scattering angle using a polychromatic Xray source and a spectroscopic detector. In order to remove system blurring and restore material proper information, inversion of the EDXRD spectra is required. This paper proposes to combine EDXRD spectra at different scattering angles to improve reconstruction results. To quantify the improvements, detective quantum efficiency (DQE) calculations are used, which allow to compare the performance of mono and multi-angle systems, are used. We present a reconstruction method based on multi-angle EDXRD spectra. The algorithm was tested on simulated salt (NaCl) spectra. Finally, advantages of multi-angle over mono-angle spectra are discussed.

引用

页数：4

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