Simultaneous acquisition of X-ray spectra using a multi-wire, position-sensitive gas flow detector

A multi-wire, gas-filled position-sensitive detector has been developed for the simultaneous recording of wavelength-dispersed X-ray signals that enables X-ray fluorescence spectrometry with a limited multi-element capability in the low Z element range. Details of the modular construction of the det...

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Bibliographic Details
Published in:Spectrochimica acta. Part B: Atomic spectroscopy 2003-12, Vol.58 (12), p.2049-2057
Main Authors: Beaven, Peter A., Marmotti, Mauro, Kampmann, Reinhard, Knoth, Joachim, Schwenke, Heinrich
Format: Article
Language:English
Subjects:
Multilayer mirrors
Position-sensitive detector
Wavelength-dispersive X-ray fluorescence spectrometry
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Summary:A multi-wire, gas-filled position-sensitive detector has been developed for the simultaneous recording of wavelength-dispersed X-ray signals that enables X-ray fluorescence spectrometry with a limited multi-element capability in the low Z element range. Details of the modular construction of the detector are given. The detector performance was characterized using Al–Kα radiation and a variable slit system. The detector has been applied in a laboratory spectrometer equipped with an electron source and a double multilayer mirror device as the wavelength-dispersing element. Spectra from Al and Si obtained in the simultaneous acquisition mode show good agreement with calculations performed using a ray-tracing model.
ISSN:0584-8547
1873-3565
DOI:10.1016/j.sab.2003.05.015