Journal of Synchrotron Radiation

Volume 18, Part 6 (November 2011)


	Cover illustration: Two-dimensional wide-angle X-ray scattering characterization of natural rubber material under combined tension and shear loadings acquired at the Synchrotron Soleil on the DiffAbs beamline (see Pannier, Proudhon, Mocuta, Thiaudière and Cantournet, pages 907-911).

facility information
research papers
short communications
obituaries
addenda and errata
current events
meetings

research papers

J. Synchrotron Rad. (2011). 18, 823-834 [ doi:10.1107/S0909049511037149 ]

X-ray near-field speckle: implementation and critical analysis

X. Lu, S. G. J. Mochrie, S. Narayanan, A. R. Sandy and M. Sprung

Synopsis: A coherence-based X-ray near-field speckle detector has been implemented and characterized for its capability of studying static structure and dynamics.

Online 5 October 2011

J. Synchrotron Rad. (2011). 18, 835-841 [ doi:10.1107/S090904951103038X ]

Increased strontium uptake in trabecular bone of ovariectomized calcium-deficient rats treated with strontium ranelate or strontium chloride

B. Pemmer, J. G. Hofstaetter, F. Meirer, S. Smolek, P. Wobrauschek, R. Simon, R. K. Fuchs, M. R. Allen, K. W. Condon, S. Reinwald, R. J. Phipps, D. B. Burr, E. P. Paschalis, K. Klaushofer, C. Streli and P. Roschger

Synopsis: Confocal synchrotron-radiation-induced micro X-ray fluorescence of trabecular bone from rats treated with strontium ranelate or chloride revealed that the bone strontium uptake is strongly increased by low calcium diet compared with normal calcium diet.

Online 15 September 2011

J. Synchrotron Rad. (2011). 18, 842-850 [ doi:10.1107/S0909049511031529 ]

Design and construction of multicrystal analyser detectors using Rowland circles: application to MAD26 at ALBA

I. Peral, J. McKinlay, M. Knapp and S. Ferrer

Synopsis: Single- and limited-energy-range multicrystal analyser detectors, the main detectors for high-resolution powder diffraction, are described on the basis of the Rowland circle construction. The conceptual design, key manufacturing parameters, along with the error budget study of MAD26, the device of the high-resolution powder diffraction endstation of ALBA, are presented.

Online 22 September 2011

J. Synchrotron Rad. (2011). 18, 851-861 [ doi:10.1107/S0909049511030688 ]

Fluorescence detection of white-beam X-ray absorption anisotropy: towards element-sensitive projections of local atomic structure

P. Korecki, M. Tolkiehn, K. M. Dabrowski and D. V. Novikov

Synopsis: A method for a direct measurement of X-ray projections of the atomic structure is described. Projections of the atomic structure around Nb atoms in a LiNbO₃ single crystal were obtained from a white-beam X-ray absorption anisotropy pattern detected using Nb K fluorescence.

Online 15 September 2011

J. Synchrotron Rad. (2011). 18, 862-870 [ doi:10.1107/S0909049511031098 ]

Synchrotron X-ray tests of an L-shaped laterally graded multilayer mirror for the analyzer system of the ultra-high-resolution IXS spectrometer at NSLS-II

M. G. Honnicke, J. W. Keister, R. Conley, K. Kaznatcheev, P. Z. Takacs, D. S. Coburn, L. Reffi and Y. Q. Cai

Synopsis: The performance of an L-shaped laterally graded multilayer mirror as a two-dimensional optical focusing device for a synchrotron beamline is presented.

Online 16 September 2011

J. Synchrotron Rad. (2011). 18, 871-878 [ doi:10.1107/S090904951103843X ]

Probing Ag nanoparticle surface oxidation in contact with (in)organics: an X-ray scattering and fluorescence yield approach

C. Levard, F. M. Michel, Y. Wang, Y. Choi, P. Eng and G. E. Brown

Synopsis: An advanced characterization approach to spatially resolve the reactions occurring at the interface between silver nanoparticles and a simple aqueous system is presented. Both phase and chemical distributions were obtained from X-ray scattering and fluorescence yield techniques.

Online 6 October 2011

J. Synchrotron Rad. (2011). 18, 879-884 [ doi:10.1107/S0909049511034418 ]

Development of a soft X-ray angle-resolved photoemission system applicable to 100 µm crystals

T. Muro, Y. Kato, T. Matsushita, T. Kinoshita, Y. Watanabe, H. Okazaki, T. Yokoya, A. Sekiyama and S. Suga

Synopsis: A soft X-ray angle-resolved photoemission system applicable to 100 µm crystals has been developed.

Online 21 September 2011

J. Synchrotron Rad. (2011). 18, 885-890 [ doi:10.1107/S0909049511036326 ]

Titanium local structure in tektite probed by X-ray absorption fine structure spectroscopy

L. Wang, A. Yoshiasa, M. Okube and T. Takeda

Synopsis: The local structure of titanium in six tektites from different strewn fields are compared by XANES and EXAFS spectroscopy and refined Ti-O bond distance. Speculations on the different formation conditions of the tektites are provided.

Online 4 October 2011

J. Synchrotron Rad. (2011). 18, 891-898 [ doi:10.1107/S0909049511038830 ]

Capabilities of through-the-substrate microdiffraction: application of Patterson-function direct methods to synchrotron data from polished thin sections

J. Rius, A. Labrador, A. Crespi, C. Frontera, O. Vallcorba and J. C. Melgarejo

Synopsis: Various aspects of the through-the-substrate microdiffraction technique and its application to the structural characterization of polished thin sections are investigated on two representative cases. In one of these a new intermediate crystalline phase (provisionally named ilerdite) is found and its structural model derived from Patterson-function direct methods.

Online 6 October 2011

J. Synchrotron Rad. (2011). 18, 899-906 [ doi:10.1107/S0909049511036703 ]

An alternative scheme of angular-dispersion analyzers for high-resolution medium-energy inelastic X-ray scattering

X.-R. Huang

Synopsis: A simple four-bounce angular-dispersion analyzer without multiple-beam diffraction or transmission-induced absorption is proposed for developing meV- to sub-meV-resolution inelastic X-ray scattering optics at medium photon energies.

Online 14 September 2011

J. Synchrotron Rad. (2011). 18, 907-911 [ doi:10.1107/S0909049511024861 ]

In situ multi-axial loading frame to probe elastomers using X-ray scattering

Y. Pannier, H. Proudhon, C. Mocuta, D. Thiaudière and S. Cantournet

Synopsis: An in situ tensile-shear loading device is described for studying elastomer crystallization using synchrotron X-ray scattering at Synchrotron Soleil on the DiffAbs beamline.

Online 14 September 2011

J. Synchrotron Rad. (2011). 18, 912-918 [ doi:10.1107/S0909049511032651 ]

The status of strontium in biological apatites: an XANES investigation

D. Bazin, M. Daudon, C. Chappard, J. J. Rehr, D. Thiaudière and S. Reguer

Synopsis: XANES collected at the Sr K-edge and ab initio FEFF9 numerical simulations have been performed to establish a possible relationship between the preparation mode of the calcification (cellular activity and precipitation) and the adsorption mode of Sr²⁺ cations (simple adsorption or insertion). Is it possible to draw a line between life and chemistry through the localization of Sr in apatite? The question is open for discussion.

Online 16 September 2011

J. Synchrotron Rad. (2011). 18, 919-922 [ doi:10.1107/S0909049511031232 ]

In situ two-dimensional imaging quick-scanning XAFS with pixel array detector

H. Tanida, H. Yamashige, Y. Orikasa, M. Oishi, Y. Takanashi, T. Fujimoto, K. Sato, D. Takamatsu, H. Murayama, H. Arai, E. Matsubara, Y. Uchimoto and Z. Ogumi

Synopsis: Two-dimensional imaging quick-scanning XAFS measurements were performed using a pixel array detector.

Online 16 September 2011

J. Synchrotron Rad. (2011). 18, 923-929 [ doi:10.1107/S0909049511034480 ]

Time-over-threshold readout to enhance the high flux capabilities of single-photon-counting detectors

A. Bergamaschi, R. Dinapoli, D. Greiffenberg, B. Henrich, I. Johnson, A. Mozzanica, V. Radicci, B. Schmitt, X. Shi and L. Stoppani

Synopsis: The MYTHEN photon-counting ASIC operated in time-over-threshold mode shows an innovative approach towards the development of a detector operating with very high photon intensities while maintaining the single-photon sensitivity for synchrotron radiation experiments.

Online 22 September 2011

J. Synchrotron Rad. (2011). 18, 930-937 [ doi:10.1107/S0909049511036648 ]

The inverse problem of bimorph mirror tuning on a beamline

R. Huang

Synopsis: Tikhonov regularization was used for solving the inverse problem in bimorph mirror tuning, with satisfactory results.

Online 30 September 2011

short communications

J. Synchrotron Rad. (2011). 18, 938-941 [ doi:10.1107/S0909049511033267 ]

On the calculation of the gauge volume size for energy-dispersive X-ray diffraction

M. R. Rowles

Synopsis: Equations have been developed for the calculation of the dimensions of a gauge volume, also known as the active volume or diffraction lozenge, in an energy-dispersive diffraction experiment where the detector is collimated by two slits.

Online 14 September 2011