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Title: Iterative Bragg peak removal on X-ray absorption spectra with automatic intensity correction

Journal Article · · Journal of Synchrotron Radiation (Online)

This study introduces a novel iterative Bragg peak removal with automatic intensity correction (IBR-AIC) methodology for X-ray absorption spectroscopy (XAS), specifically addressing the challenge of Bragg peak interference in the analysis of crystalline materials. The approach integrates experimental adjustments and sophisticated post-processing, including an iterative algorithm for robust calculation of the scaling factor of the absorption coefficients and efficient elimination of the Bragg peaks, a common obstacle in accurately interpreting XAS data, particularly in crystalline samples. The method was thoroughly evaluated on dilute catalysts and thin films, with fluorescence mode and large-angle rotation. The results underscore the technique's effectiveness, adaptability and substantial potential in improving the precision of XAS data analysis. While demonstrating significant promise, the method does have limitations related to signal-to-noise ratio sensitivity and the necessity for meticulous angle selection during experimentation. Overall, IBR-AIC represents a significant advancement in XAS, offering a pragmatic solution to Bragg peak contamination challenges, thereby expanding the applications of XAS in understanding complex materials under diverse experimental conditions.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
National Science Foundation (NSF); U.S-Israel Binational Science Foundation (BSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
SC0012704
OSTI ID:
2470305
Journal Information:
Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Journal Issue: 3 Vol. 31; ISSN 1600-5775
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English

References (31)

Crystal Glitches of X-Ray Monochromators book January 1984
Monochromator-induced glitches in EXAFS data I. Test of the model for linearly tapered samples
  • Bridges, F.; Li, G. G.; Wang, Xun
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 320, Issue 3, p. 548-555 https://doi.org/10.1016/0168-9002(92)90949-5
journal September 1992
Monochromator-induced glitches in EXAFS data II. Test of the model for a pinhole sample
  • Li, G. G.; Bridges, F.; Wang, Xun
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 340, Issue 2 https://doi.org/10.1016/0168-9002(94)90121-X
journal February 1994
Flourescence detection of surface exafs journal June 1984
Characterization of isolated Ag cations in homoionic Ag-Y zeolites: A combined anomalous XRPD and EXAFS study journal January 2003
Piezoelectric aluminum nitride thin-films: A review of wet and dry etching techniques journal March 2022
Watching nanomaterials with X-ray eyes: Probing different length scales by combining scattering with spectroscopy journal July 2020
Metal Sites in Zeolites: Synthesis, Characterization, and Catalysis journal September 2022
Core–Shell Structure of Palladium Hydride Nanoparticles Revealed by Combined X-ray Absorption Spectroscopy and X-ray Diffraction journal July 2017
Local Environment of Sc and Y Dopant Ions in Aluminum Nitride Thin Films journal January 2024
In Situ XAS and XRPD Parametric Rietveld Refinement To Understand Dealumination of Y Zeolite Catalyst journal January 2010
Structural Characterization of Carbon-Supported Platinum−Ruthenium Nanoparticles from the Molecular Cluster Precursor PtRu 5 C(CO) 16 journal August 1997
XRD, XAS, and IR Characterization of Copper-Exchanged Y Zeolite journal September 2000
Progress, Challenges, and Opportunities in Two-Dimensional Materials Beyond Graphene journal March 2013
Interrogating site dependent kinetics over SiO2-supported Pt nanoparticles journal March 2024
Array programming with NumPy journal September 2020
SciPy 1.0: fundamental algorithms for scientific computing in Python journal February 2020
Time-resolved operando studies of carbon supported Pd nanoparticles under hydrogenation reactions by X-ray diffraction and absorption journal January 2018
A spinning-stage, total electron-yield detector for the elimination of diffraction peaks in x-ray absorption spectra journal January 1997
High quality x-ray absorption spectroscopy measurements with long energy range at high pressure using diamond anvil cell journal July 2009
Condensed Matter Astrophysics: a Prescription for Determining the Species-Specific Composition and Quantity of Interstellar dust Using X-Rays journal August 2009
Recent progress on epitaxial growth of Fe-based superconducting thin films journal April 2023
Larch: An Analysis Package for XAFS and Related Spectroscopies journal April 2013
Total-electron-yield current measurements for near-surface extended x-ray-absorption fine structure journal February 1988
A method for normalization of X-ray absorption spectra journal June 2005
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Glitch-free X-ray absorption spectrum under high pressure obtained using nano-polycrystalline diamond anvils journal July 2012
Suppression of Bragg reflection glitches of a single-crystal diamond anvil cell by a polycapillary half-lens in high-pressure XAFS spectroscopy journal January 2013
An algorithm for the automatic deglitching of X-ray absorption spectroscopy data journal May 2021
The Chemistry and Applications of Metal-Organic Frameworks journal August 2013
Synthesis of Novel Thin-Film Materials by Pulsed Laser Deposition journal August 1996