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A dedicated powder diffraction beamline at the Advanced Photon Source: Commissioning and early operational results
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10.1063/1.2969260
/content/aip/journal/rsi/79/8/10.1063/1.2969260
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/8/10.1063/1.2969260
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic layout of 11BM beamline optics.

Image of FIG. 2.
FIG. 2.

Pictures of the 11BM (a) 12 analyzer/detector system and (b) robotic sample exchanger.

Image of FIG. 3.
FIG. 3.

Rocking curve widths at : (a) Si (111) monochromotor crystal and (b) Si (111) analyzer crystal.

Image of FIG. 4.
FIG. 4.

Focused beam profiles at sample position in (a) horizontal and (b) vertical directions.

Image of FIG. 5.
FIG. 5.

High-resolution diffraction pattern from NIST standard reference material (660a) at . The inset shows a portion of high data.

Image of FIG. 6.
FIG. 6.

Measured FWHM of selected peaks from the diffraction data shown in Fig. 5: (a) as measured (symbol) and fit (line) to the IRF, as discussed in section IVc; (b) as a Williamson–Hall plot; (c) expressed in wavelength-independent units as .

Image of FIG. 7.
FIG. 7.

Rietveld refinement using a high-resolution diffraction pattern from a mixture of two NIST SRM materials [ Si (640c) and (676)]. Crosses indicate averaged data from the combination of the 12 detectors, the red solid line shows the computed results, while the green line shows the fitted background. The blue line at the bottom shows the difference between the observed and computed results.

Image of FIG. 8.
FIG. 8.

Selected diffraction peaks repeatedly measured at over the course of time (a) for a representative high-angle peak during a few-hours scan ; (b) and (c) representative peaks at high angle and low angle, respectively, for (Si and mixture).

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/content/aip/journal/rsi/79/8/10.1063/1.2969260
2008-08-22
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A dedicated powder diffraction beamline at the Advanced Photon Source: Commissioning and early operational results
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/8/10.1063/1.2969260
10.1063/1.2969260
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