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Type: | Conference paper |
Title: | Decision process for comparison of partial and complete XANES spectra |
Author: | Zheng, J. Edraki, M. Huynh, T. Gasparon, M. Ng, J. Harris, H. Noller, B. |
Citation: | SRI 2009 : the 10th International Conference on Synchrotron Radiation Instrumentation / R. Garrett, I. Gentle, K. Nugent, S. Wilkins (eds.): pp.621-624 |
Publisher: | AIP |
Publisher Place: | USA |
Issue Date: | 2010 |
Series/Report no.: | AIP Conference Proceedings |
ISBN: | 9780735407824 |
ISSN: | 0094-243X 1551-7616 |
Conference Name: | International Conference on Synchrotron Radiation Instrumentation (10th : 2009 : Melbourne, Australia) |
Editor: | Garrett, R. Gentle, I. Nugent, K. Wilkins, S. |
Statement of Responsibility: | J. J. Zheng, M. Edraki, T. Huynh, M. Gasparon, J. Ng, H. H. Harris, and B. Noller |
Abstract: | If the range of XANES spectra varies between sets of scans, it may be impossible to compare sets of spectra unless a restricted part of the spectra is used. The paper derives a decision process for comparison of partial and complete XANES spectra, taking lead as an example. Lead L3-edge XANES spectra were collected at the Australian National Beamline Facility (BL-20B) Photon Factory, Tsukuba, Japan over the energy range 13,000-13,150 eV (ring conditions: 2.5 GeV, 300-400 mA). The monochromator step size was reduced to 0.25 eV per step in the XANES region (13,000-13,100 eV and 13,040-13,100 eV) to collect high-resolution spectra. XANES data for samples and model compounds were collected at ambient temperature and pressure in fluorescence, using simultaneous collection of a Pb metal reference foil for energy calibration (first derivative peak of elemental Pb was 13,050 eV). XANES spectra were fitted using spectral deconvolution and least-squares linear combination fitting (LCF). Detailed XANES results with LCF approach over various energy ranges are illustrated and discussed and show the applicability of the decision-making procedure to compare sets of spectra. © 2010 American Institute of Physics. |
Keywords: | X-ray absorption spectra X-ray fluorescence X-ray diffraction |
Description: | Also published as: AIP Conference Proceedings, 2010; 1234(1):621-624 |
Rights: | ©2010 American Institute of Physics |
DOI: | 10.1063/1.3463283 |
Published version: | http://dx.doi.org/10.1063/1.3463283 |
Appears in Collections: | Aurora harvest Environment Institute publications Physics publications |
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