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X-ray rocking curve measurements of bent crystalsA 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 of the NASA 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 K-alpha(1) line at 1.5 A (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 1.54 A. The crystals analyzed included LiF(200), PET, and acid phthalates such as TAP.
Document ID
19890052945
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hakim, M. B.
(ST Systems Corp. Greenbelt, MD, United States)
Muney, W. S.
(ST Systems Corp. Greenbelt, MD, United States)
Fowler, W. B.
(ST Systems Corp. Greenbelt, MD, United States)
Woodgate, B. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
Optics
Meeting Information
Meeting: X-Ray Instrumentation in Astronomy II
Location: San Diego, CA
Country: United States
Start Date: August 15, 1988
End Date: August 17, 1988
Sponsors: SPIE
Accession Number
89A40316
Funding Number(s)
CONTRACT_GRANT: NAS5-28752
Distribution Limits
Public
Copyright
Other

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