Tomographic x-ray absorption spectroscopy

被引：0

作者：

Schroer, C. G. ^{[1
]}

Kuhlmann, M. ^{[1
]}

Guenzler, T. F. ^{[1
]}

Lengeler, B. ^{[1
]}

Richwin, M. ^{[2
,3
]}

Griesebock, B. ^{[2
,3
]}

Luetzenkirchen-Hecht, D. ^{[2
,3
]}

Frahm, R. ^{[2
,3
]}

Mashayekhi, A. ^{[4
]}

Haeffner, D. R. ^{[4
]}

Ziegler, E. ^{[5
]}

Grunwaldt, J. -D. ^{[6
]}

Baiker, A. ^{[6
]}

机构：

[1] Univ Aachen, Inst Phys 2, D-52056 Aachen, Germany

[2] Berg Univ Wuppertal, Inst Mat Sci, D-42097 Wuppertal, Germany

[3] Berg Univ Wuppertal, Dept Phys, D-42097 Wuppertal, Germany

[4] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[5] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[6] ETH Honggerberg, Swiss Fed Inst Technol, Inst Chem & Bioengn, CH-8093 Zurich, Switzerland

来源：

PHYSICA SCRIPTA | 2005年 / T115卷

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Hard X-ray absorption spectroscopy is combined with scanning microtomography to reconstruct full near edge spectra of an elemental species at each point on an arbitrary virtual section through a sample. These spectra reveal the local concentration of different chemical compounds of the absorbing element inside the sample and give insight into the oxidation state and the local projected free density of states. The method is implemented by combining a quick scanning monochromator and data acquisition system with a scanning microprobe setup based on refractive X-ray lenses. The full XANES spectra reconstructed at each point of the tomographic slice allow one to detect slight variations in concentration of the chemical compounds, such as Cu and Cu(I)(2)O.

引用

页码：1026 / 1028

页数：3

共 15 条

[1] HIGH-RESOLUTION TOMOGRAPHY WITH CHEMICAL SPECIFICITY [J].