A Johann-type spectrometer with five spherically bent crystals and a pixel detector was constructed for a range of hard x-ray photon-in photon-out synchrotron techniques, covering a Bragg-angle range of 60°–88°. The spectrometer provides a sub emission line width energy resolution from sub-eV to a few eV and precise energy calibration, better than 1.5 eV for the full range of Bragg angles. The use of a pixel detector allows fast and easy optimization of the signal-to-background ratio. A concentration detection limit below 0.4 wt% was reached at the Cu Kα1 line. The spectrometer is designed as a modular mobile device for easy integration in a multi-purpose hard x-ray synchrotron beamline, such as the SuperXAS beamline at the Swiss Light Source.
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June 2011
Research Article|
June 16 2011
Five-element Johann-type x-ray emission spectrometer with a single-photon-counting pixel detector
Evgeny Kleymenov;
Evgeny Kleymenov
a)
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
2ETH Zurich,
Institute for Chemical and Bioengineering
, 8093 Zurich, Switzerland
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Jeroen A. van Bokhoven;
Jeroen A. van Bokhoven
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
2ETH Zurich,
Institute for Chemical and Bioengineering
, 8093 Zurich, Switzerland
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Christian David;
Christian David
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
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Pieter Glatzel;
Pieter Glatzel
3
European Synchrotron Radiation Facility
, 6 Rue Jules Horowitz, 38043 Grenoble, France
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Markus Janousch;
Markus Janousch
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
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Roberto Alonso-Mori;
Roberto Alonso-Mori
4
SLAC National Accelerator Laboratory
, 2575 Sand Hill Road, Menlo Park, California 94025, USA
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Marco Studer;
Marco Studer
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
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Markus Willimann;
Markus Willimann
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
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Anna Bergamaschi;
Anna Bergamaschi
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
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Beat Henrich;
Beat Henrich
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
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Maarten Nachtegaal
Maarten Nachtegaal
b)
1
Paul Scherrer Institut
, 5232 Villigen, Switzerland
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a)
Electronic mail: evgeny.kleymenov@psi.ch.
b)
Electronic mail: maarten.nachtegaal@psi.ch.
Rev. Sci. Instrum. 82, 065107 (2011)
Article history
Received:
March 24 2011
Accepted:
May 19 2011
Citation
Evgeny Kleymenov, Jeroen A. van Bokhoven, Christian David, Pieter Glatzel, Markus Janousch, Roberto Alonso-Mori, Marco Studer, Markus Willimann, Anna Bergamaschi, Beat Henrich, Maarten Nachtegaal; Five-element Johann-type x-ray emission spectrometer with a single-photon-counting pixel detector. Rev. Sci. Instrum. 1 June 2011; 82 (6): 065107. https://doi.org/10.1063/1.3600452
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