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Correcting intensity loss errors in the absence of texture-free reference samples during pole figure measurement

Journal Article


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Abstract


  • Even with the use of X-ray polycapillary lenses, sample tilting during pole figure measurement results in a decrease in the recorded X-ray intensity. The magnitude of this error is affected by the sample size and/or the finite detector size. These errors can be typically corrected by measuring the intensity loss as a function of the tilt angle using a texture-free reference sample (ideally made of the same alloy as the investigated material). Since texture-free reference samples are not readily available for all alloys, the present study employs an empirical procedure to estimate the correction curve for a particular experimental configuration. It involves the use of real texture-free reference samples that pre-exist in any X-ray diffraction laboratory to first establish the empirical correlations between X-ray intensity, sample tilt and their Bragg angles and thereafter generate correction curves for any Bragg angle. It will be shown that the empirically corrected textures are in very good agreement with the experimentally corrected ones.

Publication Date


  • 2016

Citation


  • Saleh, A. A., Vu, V. Q. & Gazder, A. A. (2016). Correcting intensity loss errors in the absence of texture-free reference samples during pole figure measurement. Materials Characterization, 118 425-430.

Scopus Eid


  • 2-s2.0-84975796445

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=7188&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/6158

Number Of Pages


  • 5

Start Page


  • 425

End Page


  • 430

Volume


  • 118

Abstract


  • Even with the use of X-ray polycapillary lenses, sample tilting during pole figure measurement results in a decrease in the recorded X-ray intensity. The magnitude of this error is affected by the sample size and/or the finite detector size. These errors can be typically corrected by measuring the intensity loss as a function of the tilt angle using a texture-free reference sample (ideally made of the same alloy as the investigated material). Since texture-free reference samples are not readily available for all alloys, the present study employs an empirical procedure to estimate the correction curve for a particular experimental configuration. It involves the use of real texture-free reference samples that pre-exist in any X-ray diffraction laboratory to first establish the empirical correlations between X-ray intensity, sample tilt and their Bragg angles and thereafter generate correction curves for any Bragg angle. It will be shown that the empirically corrected textures are in very good agreement with the experimentally corrected ones.

Publication Date


  • 2016

Citation


  • Saleh, A. A., Vu, V. Q. & Gazder, A. A. (2016). Correcting intensity loss errors in the absence of texture-free reference samples during pole figure measurement. Materials Characterization, 118 425-430.

Scopus Eid


  • 2-s2.0-84975796445

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=7188&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/6158

Number Of Pages


  • 5

Start Page


  • 425

End Page


  • 430

Volume


  • 118