Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 619, Issue 1-3, Pages 154-156Publisher
ELSEVIER
DOI: 10.1016/j.nima.2010.01.001
Keywords
XANES; X-ray energy monitor; X-ray intensity monitor; Phosphorus
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Funding
- Office of Polar Programs (OPP)
- Directorate For Geosciences [0849494, 0849474] Funding Source: National Science Foundation
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An in-line X-ray beam energy and intensity monitor has been developed for use in focussed X-ray absorption near-edge spectroscopy (XANES) measurements. The monitor uses only the X-ray intensity that would otherwise bypass our zone-plate focussing optic and relies on a measurement of photoemission current. The monitor is inexpensive, easy to align, and provides valuable feedback about the X-ray energy. Operation of the monitor is demonstrated for measurements of phosphorus XANES. The precision of the energy determination is around 0.5 eV. (C) 2010 Published by Elsevier B.V.
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