issue contents

Journal logoJOURNAL OF
ISSN: 1600-5775

July 1998 issue

Highlighted illustration

Cover illustration: The double-crystal high-flux monochromator of the Austrian SAXS beamline at ELETTRA (Italy), which supplies the three fixed energies 5.4, 8 and 16 keV, see Bernstorff, Amenitsch and Laggner, pages 1215-1221. The monochromator serves also as a beamsplitter, providing simultaneously a diffraction beamline and the SAXS beamline.

facility information

research papers

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Analytical and numerical calculations of the coherence of synchrotron radiation are presented.

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SPring-8 front ends have been constructed based on a novel design to facilitate the rearrangement and exchange of the components. Commissioning has been performed successfully.

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Compact absorbers for SPring-8 standard undulator beamlines have been developed and installed. The absorbers withstand up to a total power of 12.3 kW and a peak power density of 497 kW mrad−2.

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SPring-8 is constructing most of its beamlines by combination of standardized components according to the light-source characteristics. Specifications of components as well as a unified method of assembly and alignment are described.

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A new method of sagittal focusing of narrow X-ray beams is proposed. The focusing element is a longitudinal parabolic groove fabricated into a crystal monochromator.

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An internally cooled crystal with pin-post structure has been fabricated using sand-blasting methods and Au-diffusive bonding techniques.

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A novel approach for implementing crystal optics in high-power wiggler beamlines based on optimized back-cooling has been developed and tested. The experimental results are compared with predictions obtained by finite-element analysis.

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An ultrahigh-vacuum system has been designed for grazing-angle X-ray standing-wave and diffraction experiments at a vertical-wiggler source of the Photon Factory. It includes an X-ray chamber with a hemispherical Be window, cross swivels, a precision rotary table and a portable vessel.

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The potential of X-ray fluorescence detection using synthetic multilayers in dilute systems is discussed.

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The magnetic form factor of nickel has been measured at high momentum transfers on a new bending-magnet beamline at the ESRF. This study has enabled the high degree of polarization of the dipole source to be quantified.

book reviews

J. Synchrotron Rad. (1998). 5, 1240

J. Synchrotron Rad. (1998). 5, 1241
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