21 December 1988 X-Ray Rocking Curve Measurements Of Bent Crystals
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Abstract
A three-crystal laboratory X-ray spectrometer is used to measure the Bragg reflection from concave cylindrically curved crystals to be used in the High Resolution X-ray Spectrometer in NASA's Advanced X-ray Astrophysics Facility (AXAF). The first two crystals, in the dispersive (1,1) arrangement, select a narrow collimated monochromatic beam in the Cu Ka 1 line at 1.54A (8.1 keV), which illuminates the test crystal. The angular centroids of rocking curves measured along the surface provide a measure of the conformity of the crystal to the desired radius of curvature. Individual and combined rocking curve widths and areas provide a measure of the resolution and efficiency at 1.54A. The crystals analyzed included LW (200), PET, and acid phthalates such as TAP.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. B. Hakim, W. S. Muney, W. B. Fowler, and B. E. Woodgate "X-Ray Rocking Curve Measurements Of Bent Crystals", Proc. SPIE 0982, X-Ray Instrumentation in Astronomy II, (21 December 1988); doi: 10.1117/12.948737; https://doi.org/10.1117/12.948737
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