title: Measurement and models of bent KAP(001) crystal integrated reflectivity and resolution (invited).
abstract: The Advanced Light Source beamline-9.3.1 x-rays are used to calibrate the rocking curve of bent potassium acid phthalate (KAP) crystals in the 2.3-4.5 keV photon-energy range. Crystals are bent on a cylindrically convex substrate with a radius of curvature ranging from 2 to 9 in. and also including the flat case to observe the effect of bending on the KAP spectrometric properties. As the bending radius increases, the crystal reflectivity converges to the mosaic crystal response. The X-ray Oriented Programs (xop) multi-lamellar model of bent crystals is used to model the rocking curve of these crystals and the calibration data confirm that a single model is adequate to reproduce simultaneously all measured integrated reflectivities and rocking-curve FWHM for multiple radii of curvature in both 1st and 2nd order of diffraction.
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: G P
authors.initials: GP
authors.lastname: Loisel
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: M
authors.initials: M
authors.lastname: Wu
authors.affiliation: National Security Technologies, LLC, Livermore, California 94551, USA.
authors.forename: W
authors.initials: W
authors.lastname: Stolte
authors.affiliation: National Security Technologies, LLC, Los Alamos, New Mexico 87544, USA.
authors.forename: C
authors.initials: C
authors.lastname: Kruschwitz
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: P
authors.initials: P
authors.lastname: Lake
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: G S
authors.initials: GS
authors.lastname: Dunham
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Bailey
authors.affiliation: Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: G A
authors.initials: GA
authors.lastname: Rochau