A new approach for QEXAFS data acquisition

被引：29

作者：

Bornebusch, H

Clausen, BS

Steffensen, G

Lützenkirchen-Hecht, D

Frahm, R

机构：

[1] Univ Dusseldorf, Inst Angew Phys, D-40225 Dusseldorf, Germany

[2] Haldor Topsoe Res Labs, DK-2800 Lyngby, Denmark

来源：

JOURNAL OF SYNCHROTRON RADIATION | 1999年 / 6卷

关键词：

Quick-EXAFS; Piezo-QEXAFS; catalysis;

D O I：

10.1107/S0909049598017518

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Quick-scanning EXAFS (QEXAFS) data were recorded by direct readout of the ionization chambers by means of current amplifiers and a high speed analog to digital converter (ADC) which enables the simultaneous measurement of 4 individual channels with sampling rates of up to 200 kHz. QEXAFS spectra covering an energy range of more than 2000 eV as well as XANES data are presented. The results show that near edge spectra of metal foils can be measured in about 5 ms with an excellent reproducibility. First applications of this setup in catalysis research will be discussed.

引用

页码：209 / 211

页数：3

共 6 条

[1]

BORNEBUSCH H, 1998, THESIS H HEINE U DUS

[2] INSITU CELL FOR COMBINED XRD AND ONLINE CATALYSIS TESTS - STUDIES OF CU-BASED WATER GAS SHIFT AND METHANOL CATALYSTS [J].