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FIZIKA B 12 (2003) 2, 181 - 192
 
DEVELOPMENT OF AN ONLINE CONTROL SYSTEM FOR A MULTI-ELEMENT
FLUORESCENCE DETECTOR
BURKHARD WRENGERb, MARTIN FIEBER-ERDMANNa, HERMANN
ROSSNERb,2 and ELIZABETA HOLUB-KRAPPEb,3
aProtein-Struktur-Fabrik, c o BESSY GmbH,
Albert-Einstein-Str. 15, D-12489 Berlin, Germany
bHahn-Meitner-Institut, Berlin, Germany
E-mail addresses: 2rossner@hmi.de, 3holub-krappe@hmi.de
Received 25 September 2003; revised manuscript received 30 October 2003
Accepted 8 December 2003 Online 3 March 2004
A new control system for fluorescence and EXAFS studies has been developed consisting
of germanium detectors and digital signal processor electronics. Using a standard PC and a
new software package leads to a high flexibility regarding application, user interface and
use of different synchrotron facilities. The new system achieves spectra with considerably
higher quality when compared to a traditional system for fluorescence and EXAFS studies.
This allows the investigation of thin films and diluted systems as shown by experiments on
a W/Nb multilayer system and on FeS2 doped with Zn.
PACS numbers: 07.85.Nc, 61.10.Ht
UDC 539.1.074, 539.1.075
Keywords: X-ray absorption, EXAFS, NEXAFS, X-ray spectrometers, fluorescence
spectroscopy, Ge detector, digital spectrometer, thin-film multilayers, diluted systems
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