期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 82, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3600452
关键词
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资金
- Swiss National Science Foundation [200021-119881]
- Swiss National Science Foundation (SNF) [200021-119881] Funding Source: Swiss National Science Foundation (SNF)
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 degrees-88 degrees. 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 K alpha(1) 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. (C) 2011 American Institute of Physics. [doi:10.1063/1.3600452]
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