Pramana

, Volume 80, Issue 1, pp 159–171 | Cite as

A comparative study of the spectra recorded at RRCAT synchrotron BL-8 dispersive EXAFS beamline with other beamlines

  • ABHIJEET GAUR
  • B D SHRIVASTAVA
  • S N JHA
  • D BHATTACHARYYA
  • A POSWAL
Article
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Abstract

The aim of the present work is to make a comparative study of the EXAFS spectra recorded at the BL-8 dispersive EXAFS beamline at 2 GeV Indus-2 synchrotron source at RRCAT, Indore (India) with those recorded at other synchrotron EXAFS beamlines, viz., X-19A at NSLS, BNL (USA), EXAFS wiggler beamline 4-1 at the SSRL (USA) and beamline 11.1 at ELETTRA (Italy). For this purpose, EXAFS spectra at Cu K-edge in copper metal have been recorded at these four beamlines. Further, EXAFS spectra at Cu K-edge in a copper complex have also been recorded at BL-8 beamline and beamline 11.1 at ELETTRA (Italy). The obtained experimental μ(E) data have been background-subtracted and then normalized. The normalized data have been then converted to χ(k) data, which have been Fourier-transformed and then fitted with the theoretical model, thereby yielding different structural parameters. It has been shown that the results obtained from the EXAFS spectra recorded at the BL-8 beamline are comparable with those obtained from other synchrotron EXAFS beamlines and also with the crystallographic results reported by earlier workers. The reliability, usefulness and data quality of the BL-8 beamline have been discussed.

Keywords

Energy-dispersive extended X-ray absorption fine-structure spectroscopy beamline BL-8 Cu metal Cu complex 

PACS No.

78.70.Dm 
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Notes

Acknowledgements

The authors thank Madhya Pradesh Council of Science & Technology (MPCST), Bhopal (India) for a research grant. XAFS measurements at ELETTRA were supported by an ICTP grant under the ICTP-ELETTRA Users Programme (proposal # 20105038). The support of BNL and SSRL staff for allowing one of the authors (BDS) to record the data is greatly acknowledged.

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Copyright information

© Indian Academy of Sciences 2012

Authors and Affiliations

  • ABHIJEET GAUR
    • 1
  • B D SHRIVASTAVA
    • 1
  • S N JHA
    • 2
  • D BHATTACHARYYA
    • 2
  • A POSWAL
    • 2
  1. 1.School of Studies in PhysicsVikram UniversityUjjainIndia
  2. 2.Applied Spectroscopy DivisionBhabha Atomic Research CentreMumbaiIndia

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