issue contents

Journal logoJOURNAL OF
ISSN: 1600-5775

March 2011 issue

Highlighted illustration

Cover illustration: Pb L3 fluorescence intensities of a line scan across the tidemark of a bone sample correlated with the reflected light micrograph of the sample surface (see Meirer, Pemmer, Pepponi, Zoeger, Wobrauschek, Sprio, Tampieri, Goettlicher, Steininger, Mangold, Roschger, Berzlanovich, Hofstaetter and Streli, pages 238-244). The positions TM1 indicate the positions where XANES scans were performed [spot size, 150 µm (horizontal) × 100 µm (vertical)].

facility information

research papers

J. Synchrotron Rad. (2011). 18, 101-108
doi: 10.1107/S090904951004896X
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An elementary derivation of fundamental properties of X-ray free-electron lasers is presented, including gain and saturation. Because of its simplicity, this approach is particularly suitable for teaching at different levels and for presentations to non-specialized audiences.

J. Synchrotron Rad. (2011). 18, 109-116
doi: 10.1107/S0909049510041075

J. Synchrotron Rad. (2011). 18, 117-124
doi: 10.1107/S0909049510047370
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The automatization tools for high-throughput tomographic microscopy developed at the TOMCAT beamline of the Swiss Light Source are described

J. Synchrotron Rad. (2011). 18, 125-133
doi: 10.1107/S0909049510044365
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A tunable X-ray focusing and/or monochromating device, called a transfocator, is described. Examples of its implementation on ID11 at the ESRF are given.

J. Synchrotron Rad. (2011). 18, 134-142
doi: 10.1107/S0909049510054452
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Operation of an X-ray spectrometer based on a spherical variable-line-spacing grating is analyzed using dedicated ray-tracing software allowing fast optimization of the grating parameters and spectrometer geometry.

J. Synchrotron Rad. (2011). 18, 143-147
doi: 10.1107/S0909049510044535
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The focused X-ray microbeam with Si-based Fresnel zone plate was successfully utilized to fabricate patterns with features as small as 100 nm on a photoresist.

J. Synchrotron Rad. (2011). 18, 148-156
doi: 10.1107/S0909049510045607
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A fast-readout pixel array detector is evaluated for small-angle X-ray scattering experiments.

J. Synchrotron Rad. (2011). 18, 157-164
doi: 10.1107/S090904951004104X
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An analog integrating pixel array detector sufficiently fast to isolate synchrotron bunches is presented and tested. The device is appropriate for time-resolved single-crystal Bragg reflection experiments or high-speed beam characterization.

J. Synchrotron Rad. (2011). 18, 165-175
doi: 10.1107/S0909049510051897
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A detailed overview of a new QEXAFS data acquisition system is given and its performance is characterized. All important features are explained with examples, and crucial design parameters of a QEXAFS set-up are discussed.

J. Synchrotron Rad. (2011). 18, 176-182
doi: 10.1107/S0909049510046546
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The new implementation of QEXAFS acquisition on the general purpose EXAFS beamline BM29 at the European Synchrotron Radiation Facility is presented.

J. Synchrotron Rad. (2011). 18, 183-188
doi: 10.1107/S090904951003863X
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A new method of performing Mössbauer spectroscopy using a fast shutter in combination with microfocused synchrotron radiation is demonstrated.

J. Synchrotron Rad. (2011). 18, 189-197
doi: 10.1107/S0909049510045322
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Phosphorus K-edge XANES spectra are presented for a diverse set of 44 phosphate minerals.

J. Synchrotron Rad. (2011). 18, 198-211
doi: 10.1107/S090904951005332X
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It is found that X-ray focusing using flexible saw-tooth refractive lenses suffers significantly from aberrations. A solution for removal of the aberrations is presented, which will permit diffraction-limited operation of such lenses.

J. Synchrotron Rad. (2011). 18, 212-216
doi: 10.1107/S0909049510045358
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A set-up is presented to measure element-resolved magnetization dynamics with a temporal resolution well below 100 ps in the time domain. X-ray resonant magnetic scattering with a diffractometer set-up enables the investigation of magnetic thin films, multilayers and laterally structured samples.

J. Synchrotron Rad. (2011). 18, 217-223
doi: 10.1107/S0909049510044523
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Lens- and fiber-coupled X-ray detectors with identical CCD chips were compared in their performance in high-resolution computed tomography experiments.

J. Synchrotron Rad. (2011). 18, 224-228
doi: 10.1107/S090904951100080X

J. Synchrotron Rad. (2011). 18, 229-237
doi: 10.1107/S0909049510053513
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The `M4 instrument' consisting of a combination of two in-line high-resolution monochromators, focusing mirrors and collimating mirrors is presented as an alternate concept to the use of backreflections for inelastic X-ray scattering instruments. Design choices and performance estimates are discussed.

J. Synchrotron Rad. (2011). 18, 238-244
doi: 10.1107/S0909049510052040
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Lead is a toxic trace element that shows a highly specific accumulation in the transition zone between calcified and non-calcified articular cartilage, the so-called `tidemark'. Excellent agreement has been found between XANES spectra of synthetic Pb-doped carbonated hydroxyapatite and spectra obtained in the tidemark region and trabecular bone of normal human samples, confirming that in both tissues Pb is incorporated into the hydroxyapatite crystal structure of bone. During this study the µ-XANES set-up at the SUL-X beamline at ANKA was tested and has proven to be well suited for speciation of lead in human mineralized tissue samples.

J. Synchrotron Rad. (2011). 18, 245-250
doi: 10.1107/S0909049510052301
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New equipment for performing time-resolved photoelectron spectroscopy using the synchrotron radiation time structure has been developed and tested.

J. Synchrotron Rad. (2011). 18, 251-256
doi: 10.1107/S0909049510052106
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A novel large-volume cell dedicated to high-energy X-ray reflectivity investigations of interfaces under pressure is described.

J. Synchrotron Rad. (2011). 18, 257-265
doi: 10.1107/S0909049510040422
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A method is described for comparing pixelated interfacial density profiles with X-ray reflectivity data both directly and quantitatively.

J. Synchrotron Rad. (2011). 18, 266-271
doi: 10.1107/S0909049510048958
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The atomic configuration of the pseudo-monoclinic structure of Hägg carbide (χ-Fe5C2) was confirmed by a real-space modelling of the pair distribution function and comparison with results from high-resolution synchrotron X-ray powder diffraction.

J. Synchrotron Rad. (2011). 18, 272-279
doi: 10.1107/S0909049510050545
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The design and performance of a compact fluorescense XAFS apparatus equipped with a microfluidic cell for in situ studies of nanoparticles are described.

J. Synchrotron Rad. (2011). 18, 280-286
doi: 10.1107/S0909049510051666

J. Synchrotron Rad. (2011). 18, 287-292
doi: 10.1107/S0909049510054130
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The recently introduced in situ µGISAXS technique has been used at ESRF to study the nucleation and growth mechanisms of lysozyme microcrystals with and without the thin Langmuir–Blodgett (LB) lysozyme film surface. Intensity fluctuations in the µGISAXS pattern versus time for the LB-induced crystallization process appear to be associated with rapid seed formation and crystal growth, while in the induced crystallization by the classical hanging-drop method the continuous shift of intensity in the Yoneda region appears to be compatible with slow crystal growth and with the quantitative model.

J. Synchrotron Rad. (2011). 18, 293-298
doi: 10.1107/S0909049510051733
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An instrumentation and data analysis review of coherent diffraction microscopy at SPring-8 is given. This work will be of interest to those who want to apply coherent diffraction imaging to studies of materials science and biological samples.

short communications

J. Synchrotron Rad. (2011). 18, 299-301
doi: 10.1107/S0909049510049204
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A new method of harmonics separation for an X-ray crystal monochromator is proposed. The method is based on diffractive–refractive optics.

J. Synchrotron Rad. (2011). 18, 302-304
doi: 10.1107/S0909049510040434
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Three-dimensional X-ray velocimetry with micrometer-level resolution is demonstrated.

J. Synchrotron Rad. (2011). 18, 305-306
doi: 10.1107/S0909049510042019
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A very simple and compact optical device aimed at the fast adjustment, alignment and bending of the mirrors of a Kirpatrick–Baez system used in the X-ray domain is described.

addenda and errata

J. Synchrotron Rad. (2011). 18, 307
doi: 10.1107/S0909049510049344

current events

J. Synchrotron Rad. (2011). 18, 308-310
doi: 10.1107/S0909049511005188
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