issue contents

Journal logoJOURNAL OF
ISSN: 1600-5775

May 2014 issue

Highlighted illustration

Cover illustration: An example of a three-level nickel zone plate with 200 µm diameter and effective 200 nm smallest zone width (see Mohacsi, Karvinen, Vartiainen, Guzenko, Somogyi, Kewish, Mercere and David, pages 497-501). The marked regions are shown below with higher magnification, showing the individual steps of 2/3 and 1/3 fill factor at the centre and at the edge of the zone plate. The effective smallest zone width is the half-period of 200 nm.

facility information

research papers

J. Synchrotron Rad. (2014). 21, 466-472
doi: 10.1107/S1600577514004780
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Circularly polarized X-ray free-electron laser beams have been generated at 11.56 keV, using a diamond crystal phase retarder at SACLA.

J. Synchrotron Rad. (2014). 21, 473-478
doi: 10.1107/S1600577514002999
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The collimating L-shaped laterally graded multilayer mirror is a vital part of the ultrahigh-resolution inelastic X-ray scattering spectrometer at NSLS-II. This article presents numerical evaluation and experimental characterization of the mirror performance as well as the technical requirements of its operation.

J. Synchrotron Rad. (2014). 21, 479-483
doi: 10.1107/S1600577514003014
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A bent Laue beam-expanding double-crystal monochromator was developed and tested at the Biomedical Imaging and Therapy beamline at the Canadian Light Source. The expander will reduce scanning time for micro-computed tomography and allow dynamic imaging that has not previously been possible at this beamline.

J. Synchrotron Rad. (2014). 21, 484-487
doi: 10.1107/S1600577514001003
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A new method of harmonics suppression based on X-ray refractive optics has been proposed and attenuation of higher-orders harmonics to five orders of magnitude using the monochromator detuning was achieved.

J. Synchrotron Rad. (2014). 21, 488-496
doi: 10.1107/S1600577514000940
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Simulated beam sizes and image distances of the toroidal focusing mirror as a function of the grazing incident angle are presented.

J. Synchrotron Rad. (2014). 21, 497-501
doi: 10.1107/S1600577514003403
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Multilevel zone plates have been successfully combined with zone-plate stacking to achieve both high-resolution and high-efficiency nanofocusing at 6.5 keV photon energy.

J. Synchrotron Rad. (2014). 21, 502-506
doi: 10.1107/S1600577514003671
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In order to improve the efficiency of X-ray absorption data recording, a fast scan method, the Turboscan, has been developed on the DEIMOS beamline at Synchrotron SOLEIL, consisting of a software-synchronized continuous motion of the monochromator and undulator motors. This process suppresses the time loss when waiting for the motors to reach their target positions, as well as software dead-time, while preserving excellent beam characteristics.

J. Synchrotron Rad. (2014). 21, 507-517
doi: 10.1107/S1600577514004962
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Anisotropic elasticity of single-crystal silicon, applications to modelling of a bent X-ray mirror, and thermal deformation of a liquid-nitrogen-cooled monochromator crystal are presented.

J. Synchrotron Rad. (2014). 21, 518-528
doi: 10.1107/S1600577514004640

J. Synchrotron Rad. (2014). 21, 529-536
doi: 10.1107/S160057751400294X
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An in-vacuum PILATUS 1M detector that covers a photon energy range from 10 keV down to 1.75 keV is characterized in terms of radiometric and geometric properties with low uncertainties. Benefits of photon energies below 5 keV are demonstrated by grazing-incidence small-angle X-ray scattering measurements.

J. Synchrotron Rad. (2014). 21, 537-546
doi: 10.1107/S1600577514003609
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Expressions are given to match X-ray data collection facilities to the intrinsic diffraction properties of crystals with different degrees of perfection.

J. Synchrotron Rad. (2014). 21, 547-553
doi: 10.1107/S160057751400410X
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A novel scattering technique in reflection geometry which enables a topological description of very rough surfaces of disordered systems is presented. The set-up uses soft X-rays at wide incident angles.

J. Synchrotron Rad. (2014). 21, 554-560
doi: 10.1107/S1600577514004366
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A successful application of singular value decomposition analysis to time-dependent powder diffraction data of an in-situ photodimerization reaction of some anthracene derivatives is presented.

J. Synchrotron Rad. (2014). 21, 561-567
doi: 10.1107/S1600577514001970
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A novel method is proposed for the correction of self-absorption effects of extended X-ray absorption fine structure measured in the fluorescence mode on single-layer or multilayer samples. The validity of this method is verified by good agreements on the corrected spectra of a Cr/C multilayer measured at different experimental geometries.

J. Synchrotron Rad. (2014). 21, 568-579
doi: 10.1107/S1600577514001416
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A method for unsupervised identification of biological cells in X-ray fluorescence microscopy data is described, allowing us to obtain distributions for elemental content by cell type without manual labeling.

J. Synchrotron Rad. (2014). 21, 580-585
doi: 10.1107/S1600577514004159
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The analysis of thin films and corrosion products by synchrotron far-infrared spectroscopy has shown that using a range of incidence angles leads to improved identification of the spectral features. The effect of the incidence angle on the band intensity in the infrared spectra is described with respect to the surface roughness.

J. Synchrotron Rad. (2014). 21, 586-593
doi: 10.1107/S1600577514002793
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A quantitative local computed tomography combined with data-constrained modelling has been developed. The method could improve distinctly the spatial resolution and the composition resolution in a sample larger than the field of view, for quantitative characterization of three-dimensional distributions of material compositions and void.

J. Synchrotron Rad. (2014). 21, 594-599
doi: 10.1107/S1600577514003440
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The recent development of instrumentation for coherent diffraction imaging with hard X-rays is presented. The three-dimensional structure of a cluster made of randomly assembled Fe2P nanorods has been revealed using coherent 8 keV X-rays.

J. Synchrotron Rad. (2014). 21, 600-612
doi: 10.1107/S1600577514003439
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The software suite SITENNO is developed for processing diffraction data collected in coherent X-ray diffraction imaging experiments of non-crystalline particles using an X-ray free-electron laser.

J. Synchrotron Rad. (2014). 21, 613-622
doi: 10.1107/S1600577514000952
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A framework combining wave-optics with Monte Carlo methods for numerical simulations of phase-sensitive X-ray imaging has been developed.

short communications

J. Synchrotron Rad. (2014). 21, 623-626
doi: 10.1107/S1600577514001283
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A method of quantifying absorber concentration from XANES spectra while correcting for effects of variable sample thickness is described.


J. Synchrotron Rad. (2014). 21, 627-632
doi: 10.1107/S1600577514003415
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A description of the upgraded beamline X25 at the NSLS, operated by the PXRR and the Photon Sciences Directorate serving the Macromolecular Crystallography community, is presented.

J. Synchrotron Rad. (2014). 21, 633-637
doi: 10.1107/S1600577514005578
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The Canadian Macromolecular Crystallography Facility beamline 08B1-1, an automated and remotely accessible beamline at the Canadian Light Source, is reported. Scientific highlights are also presented.

letters to the editor

J. Synchrotron Rad. (2014). 21, 638-639
doi: 10.1107/S1600577514007619

addenda and errata

current events

J. Synchrotron Rad. (2014). 21, 641-642
doi: 10.1107/S1600577514008030
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