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Title: X-ray speckle contrast variation at a sample-specific absorption edges

Abstract

The authors measured static x-ray speckle contrast variation with the incident photon energy across sample-specific absorption edges. They propose that the variation depends strongly on the spectral response function of the monochromator. Speckle techniques have been introduced to the x-ray regime during recent years. Most of these experiments, however, were done at photon energies above 5 keV. They are working on this technique in the 1 to 4 keV range, an energy range that includes many important x-ray absorption edges, e.g., in Al, Si, P, S, the rare-earths, and others. To their knowledge, the effect of absorption edges on speckle contrast has not yet been studied. In this paper, they present their initial measurements and understanding of the observed phenomena.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
755862
Report Number(s):
ANL/XFD/CP-101790
TRN: US0003784
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: PCS 2000 Conference, Whistler, British Columbia (CA), 08/21/2000--08/23/2000; Other Information: PBD: 3 May 2000
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ADVANCED PHOTON SOURCE; MONOCHROMATORS; X RADIATION; RESPONSE FUNCTIONS; ALUMINIUM; ZINC; CORRELATION FUNCTIONS; ABSORPTION SPECTRA; OPTICS

Citation Formats

Retsch, C. C., Wang, Y., Frigo, S. P., Stephenson, G. B., and McNulty, I. X-ray speckle contrast variation at a sample-specific absorption edges. United States: N. p., 2000. Web.
Retsch, C. C., Wang, Y., Frigo, S. P., Stephenson, G. B., & McNulty, I. X-ray speckle contrast variation at a sample-specific absorption edges. United States.
Retsch, C. C., Wang, Y., Frigo, S. P., Stephenson, G. B., and McNulty, I. Wed . "X-ray speckle contrast variation at a sample-specific absorption edges". United States. https://www.osti.gov/servlets/purl/755862.
@article{osti_755862,
title = {X-ray speckle contrast variation at a sample-specific absorption edges},
author = {Retsch, C. C. and Wang, Y. and Frigo, S. P. and Stephenson, G. B. and McNulty, I.},
abstractNote = {The authors measured static x-ray speckle contrast variation with the incident photon energy across sample-specific absorption edges. They propose that the variation depends strongly on the spectral response function of the monochromator. Speckle techniques have been introduced to the x-ray regime during recent years. Most of these experiments, however, were done at photon energies above 5 keV. They are working on this technique in the 1 to 4 keV range, an energy range that includes many important x-ray absorption edges, e.g., in Al, Si, P, S, the rare-earths, and others. To their knowledge, the effect of absorption edges on speckle contrast has not yet been studied. In this paper, they present their initial measurements and understanding of the observed phenomena.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Conference:
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