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Software for automatic calibration of synchrotron powder diffractometers.

David Laundy1, Chiu Tang, Mark Roberts

  • 1Daresbury Laboratory, Warrington, Cheshire WA4 4AD, UK. d.laundy@dl.ac.uk

Journal of Synchrotron Radiation
|February 28, 2003
PubMed
Summary

A new automated calibration method for angular-dispersive diffraction instruments was developed. This technique refines radiation wavelength and detector arm angles using standard reference materials for improved accuracy.

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Area of Science:

  • Materials Science
  • Crystallography
  • Synchrotron Radiation

Background:

  • Angular-dispersive monochromatic diffraction instruments require precise calibration for accurate data.
  • Manual calibration procedures can be time-consuming and prone to error.

Purpose of the Study:

  • To develop an automated procedure for calibrating angular-dispersive monochromatic diffraction instruments.
  • To refine the accuracy of wavelength determination and detector arm positioning.

Main Methods:

  • Development of a macro language-based automated procedure.
  • Utilizing powder diffraction instruments at the Daresbury Synchrotron Radiation Source.
  • Employing a standard reference material to locate Bragg reflections and refine peak centers.

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Main Results:

  • Successful implementation of automated calibration for diffraction instruments.
  • Refinement of radiation wavelength and detector arm angular offset.
  • Demonstrated viability through applications and presented reliability and accuracy study results.

Conclusions:

  • The developed automated procedure offers an efficient and accurate method for calibrating diffraction instruments.
  • This advancement enhances the reliability of data obtained from synchrotron radiation sources.
  • The software provides a robust solution for routine instrument calibration.