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Title: Fabrication and testing of a newly designed slit system for depth-resolved X-ray diffraction measurements

A new system of slits called `spiderweb slits' have been developed for depth-resolved powder or polycrystalline X-ray diffraction measurements. The slits act on diffracted X-rays to select a particular gauge volume of sample, while absorbing diffracted X-rays from outside of this volume. Although the slit geometry is to some extent similar to that of previously developed conical slits or spiral slits, this new design has advantages over the previous ones in use for complex heterogeneous materials and in situ and operando diffraction measurements. For example, the slits can measure a majority of any diffraction cone for any polycrystalline material, over a continuous range of diffraction angles, and work for X-ray energies of tens to hundreds of kiloelectronvolts. In addition, the design is generated and optimized using ray-tracing simulations, and fabricated through laser micromachining. The first prototype was successfully tested at the X17A beamline at the National Synchrotron Light Source, and shows similar performance to simulations, demonstrating gauge volume selection for standard powders, for all diffraction peaks over angles of 2–10°. A similar, but improved, design will be implemented at the X-ray Powder Diffraction beamline at the National Synchrotron Light Source II.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchroton Light Source II
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchroton Light Source II; Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Publication Date:
Report Number(s):
BNL-112332-2016-JA
Journal ID: ISSN 1600-5775; TRN: US1701567
Grant/Contract Number:
SC00112704; AC02-98CH10886
Type:
Accepted Manuscript
Journal Name:
Journal of Synchrotron Radiation (Online)
Additional Journal Information:
Journal Name: Journal of Synchrotron Radiation (Online); Journal Volume: 23; Journal Issue: 6; Journal ID: ISSN 1600-5775
Publisher:
International Union of Crystallography
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; synchrotron X-ray powder diffraction; depth-resolved; slits; ray-tracing
OSTI Identifier:
1340368

Sinsheimer, John, Bouet, Nathalie, Ghose, Sanjit, Dooryhee, Eric, and Conley, Ray. Fabrication and testing of a newly designed slit system for depth-resolved X-ray diffraction measurements. United States: N. p., Web. doi:10.1107/S1600577516013084.
Sinsheimer, John, Bouet, Nathalie, Ghose, Sanjit, Dooryhee, Eric, & Conley, Ray. Fabrication and testing of a newly designed slit system for depth-resolved X-ray diffraction measurements. United States. doi:10.1107/S1600577516013084.
Sinsheimer, John, Bouet, Nathalie, Ghose, Sanjit, Dooryhee, Eric, and Conley, Ray. 2016. "Fabrication and testing of a newly designed slit system for depth-resolved X-ray diffraction measurements". United States. doi:10.1107/S1600577516013084. https://www.osti.gov/servlets/purl/1340368.
@article{osti_1340368,
title = {Fabrication and testing of a newly designed slit system for depth-resolved X-ray diffraction measurements},
author = {Sinsheimer, John and Bouet, Nathalie and Ghose, Sanjit and Dooryhee, Eric and Conley, Ray},
abstractNote = {A new system of slits called `spiderweb slits' have been developed for depth-resolved powder or polycrystalline X-ray diffraction measurements. The slits act on diffracted X-rays to select a particular gauge volume of sample, while absorbing diffracted X-rays from outside of this volume. Although the slit geometry is to some extent similar to that of previously developed conical slits or spiral slits, this new design has advantages over the previous ones in use for complex heterogeneous materials and in situ and operando diffraction measurements. For example, the slits can measure a majority of any diffraction cone for any polycrystalline material, over a continuous range of diffraction angles, and work for X-ray energies of tens to hundreds of kiloelectronvolts. In addition, the design is generated and optimized using ray-tracing simulations, and fabricated through laser micromachining. The first prototype was successfully tested at the X17A beamline at the National Synchrotron Light Source, and shows similar performance to simulations, demonstrating gauge volume selection for standard powders, for all diffraction peaks over angles of 2–10°. A similar, but improved, design will be implemented at the X-ray Powder Diffraction beamline at the National Synchrotron Light Source II.},
doi = {10.1107/S1600577516013084},
journal = {Journal of Synchrotron Radiation (Online)},
number = 6,
volume = 23,
place = {United States},
year = {2016},
month = {10}
}

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