A plastic miniature x-ray emission spectrometer based on the cylindrical von Hamos geometry
Journal Article
·
· Review of Scientific Instruments
- Department of Physics, University of Washington, Seattle, Washington 98195 (United States)
- Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada)
- Department of Physics, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
We present a short working distance miniature x-ray emission spectrometer (miniXES) based on the cylindrical von Hamos geometry. We describe the general design principles for the spectrometer and detail a specific implementation that covers K{beta} and valence level emission from Fe. Large spatial and angular access to the sample region provides compatibility with environmental chambers, microprobe, and pump/probe measurements. The primary spectrometer structure and optic is plastic, printed using a 3-dimensional rapid-prototype machine. The spectrometer is inexpensive to construct and is portable; it can be quickly set up at any focused beamline with a tunable narrow bandwidth monochromator. The sample clearance is over 27 mm, providing compatibility with a variety of environment chambers. An overview is also given of the calibration and data processing procedures, which are implemented by a multiplatform user-friendly software package. Finally, representative measurements are presented. Background levels are below the level of the K{beta}{sub 2,5} valence emission, the weakest diagram line in the system, and photometric analysis of count rates finds that the instrument is performing at the theoretical limit.
- OSTI ID:
- 22063798
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 2 Vol. 83; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
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