A multi-crystal wavelength dispersive hard x-ray spectrometer with high-energy resolution and large solid angle collection is described. The instrument is specifically designed for time-resolved applications of x-ray emission spectroscopy (XES) and x-ray Raman scattering (XRS) at X-ray Free Electron Lasers (XFEL) and synchrotron radiation facilities. It also simplifies resonant inelastic x-ray scattering (RIXS) studies of the whole 2d RIXS plane. The spectrometer is based on the Von Hamos geometry. This dispersive setup enables an XES or XRS spectrum to be measured in a single-shot mode, overcoming the scanning needs of the Rowland circle spectrometers. In conjunction with the XFEL temporal profile and high-flux, it is a powerful tool for studying the dynamics of time-dependent systems. Photo-induced processes and fast catalytic reaction kinetics, ranging from femtoseconds to milliseconds, will be resolvable in a wide array of systems circumventing radiation damage.
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July 2012
Research Article|
July 31 2012
A multi-crystal wavelength dispersive x-ray spectrometer
Roberto Alonso-Mori;
Roberto Alonso-Mori
1LCLS,
SLAC National Accelerator Laboratory
, Menlo Park, California 94025, USA
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Jan Kern;
Jan Kern
1LCLS,
SLAC National Accelerator Laboratory
, Menlo Park, California 94025, USA
2Physical Biosciences Division,
Lawrence Berkeley National Laboratory
, Berkeley, California 94720-8099, USA
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Dimosthenis Sokaras;
Dimosthenis Sokaras
3SSRL,
SLAC National Accelerator Laboratory
, Menlo Park, California 94025, USA
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Tsu-Chien Weng;
Tsu-Chien Weng
3SSRL,
SLAC National Accelerator Laboratory
, Menlo Park, California 94025, USA
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Dennis Nordlund;
Dennis Nordlund
3SSRL,
SLAC National Accelerator Laboratory
, Menlo Park, California 94025, USA
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Rosalie Tran;
Rosalie Tran
2Physical Biosciences Division,
Lawrence Berkeley National Laboratory
, Berkeley, California 94720-8099, USA
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Paul Montanez;
Paul Montanez
1LCLS,
SLAC National Accelerator Laboratory
, Menlo Park, California 94025, USA
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James Delor;
James Delor
1LCLS,
SLAC National Accelerator Laboratory
, Menlo Park, California 94025, USA
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Vittal K. Yachandra;
Vittal K. Yachandra
2Physical Biosciences Division,
Lawrence Berkeley National Laboratory
, Berkeley, California 94720-8099, USA
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Junko Yano;
Junko Yano
2Physical Biosciences Division,
Lawrence Berkeley National Laboratory
, Berkeley, California 94720-8099, USA
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Uwe Bergmann
Uwe Bergmann
1LCLS,
SLAC National Accelerator Laboratory
, Menlo Park, California 94025, USA
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Rev. Sci. Instrum. 83, 073114 (2012)
Article history
Received:
May 10 2012
Accepted:
July 02 2012
Citation
Roberto Alonso-Mori, Jan Kern, Dimosthenis Sokaras, Tsu-Chien Weng, Dennis Nordlund, Rosalie Tran, Paul Montanez, James Delor, Vittal K. Yachandra, Junko Yano, Uwe Bergmann; A multi-crystal wavelength dispersive x-ray spectrometer. Rev. Sci. Instrum. 1 July 2012; 83 (7): 073114. https://doi.org/10.1063/1.4737630
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