Decision process for comparison of partial and complete XANES spectra

Zheng, Jiajia, Edraki, Mansour, Huynh, Trang T., Gasparon, Massimo, Ng, Jack C., Harris, Hugh H. and Noller, Barry N. (2010). Decision process for comparison of partial and complete XANES spectra. In: Richard Garrett, Ian Gentle, Keith Nugent and Steven Wilkins, SRI 2009: 10th International Conference on Synchrotron Radiation Instrumentation. SRI09: The 10th International Conference on Synchrotron Radiation Instrumentation, Melbourne, VIC, Australia, (621-624). 27 September-2 October 2009.

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Author Zheng, Jiajia
Edraki, Mansour
Huynh, Trang T.
Gasparon, Massimo
Ng, Jack C.
Harris, Hugh H.
Noller, Barry N.
Title of paper Decision process for comparison of partial and complete XANES spectra
Conference name SRI09: The 10th International Conference on Synchrotron Radiation Instrumentation
Conference location Melbourne, VIC, Australia
Conference dates 27 September-2 October 2009
Proceedings title SRI 2009: 10th International Conference on Synchrotron Radiation Instrumentation   Check publisher's open access policy
Journal name AIP Conference Proceedings   Check publisher's open access policy
Place of Publication Melville, NY, U.S.A.
Publisher Springer New York
Publication Year 2010
Year available 2009
Sub-type Poster
DOI 10.1063/1.3463283
ISBN 9780735407824
0735407827
9780735407794
0735407797
ISSN 0094-243X
1551-7616
1935-0465
Editor Richard Garrett
Ian Gentle
Keith Nugent
Steven Wilkins
Volume 1234
Start page 621
End page 624
Total pages 4
Collection year 2010
Language eng
Formatted Abstract/Summary 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
Subjects E3
849999 Mineral Resources (excl. Energy Resources) not elsewhere classified
849803 Management of Liquid Waste from Mineral Resource Activities (excl. Water)
029904 Synchrotrons; Accelerators; Instruments and Techniques
050204 Environmental Impact Assessment
050206 Environmental Monitoring
Keyword X-ray absorption spectra
X-ray fluorescence
X-ray diffraction
X-ray emission spectra and fluorescence
Q-Index Code EX
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Publication date: 23 June 2010. Originally presented during Poster Session I, "Sample Environment/Extreme Conditions" and reproduced in the programme book as abs#425, p198.

 
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