Journal of Synchrotron Radiation

 

J. Synchrotron Rad. (2012). 19, 661-674  [ doi:10.1107/S0909049512027847 ]

X-Treme beamline at SLS: X-ray magnetic circular and linear dichroism at high field and low temperature

C. Piamonteze, U. Flechsig, S. Rusponi, J. Dreiser, J. Heidler, M. Schmidt, R. Wetter, M. Calvi, T. Schmidt, H. Pruchova, J. Krempasky, C. Quitmann, H. Brune and F. Nolting

Synopsis: The optical design of the X-Treme beamline together with commissioning measurements and research examples are presented. The beamline is dedicated to polarization-dependent X-ray absorption spectroscopy in the soft X-ray energy range at high magnetic fields and low temperature.

Online 21 July 2012

 

J. Synchrotron Rad. (2012). 19, 675-681  [ doi:10.1107/S0909049512032153 ]

Investigation of multilayer X-ray optics for the 6 keV to 20 keV energy range

P. Oberta, Y. Platonov and U. Flechsig

Synopsis: Seven different multilayer samples have been investigated to find an ideal multilayer structure for the energy range between 6 keV and 20 keV in terms of energy resolution and reflectivity.

Online 3 August 2012

 

J. Synchrotron Rad. (2012). 19, 682-687  [ doi:10.1107/S0909049512027562 ]

Grazing-incidence X-ray diffraction study of rubrene epitaxial thin films

E. Fumagalli, M. Campione, L. Raimondo, A. Sassella, M. Moret, L. Barba and G. Arrighetti

Synopsis: Grazing-incidence X-ray diffraction measurements are used to study the structural properties of rubrene crystalline thin films. The use of this technique allows us to determine the crystalline structure of the film and to determine the epitaxial relationship with the substrate, demonstrating also its uniqueness.

Online 11 July 2012

 

J. Synchrotron Rad. (2012). 19, 688-694  [ doi:10.1107/S0909049512023758 ]

In situ three-dimensional reciprocal-space mapping during mechanical deformation

T. W. Cornelius, A. Davydok, V. L. R. Jacques, R. Grifone, T. Schülli, M.-I. Richard, G. Beutier, M. Verdier, T. H. Metzger, U. Pietsch and O. Thomas

Synopsis: The mechanical deformation of a SiGe island by a specially adapted atomic force microscope was monitored in situ by three-dimensional reciprocal-space mapping employing nanofocused X-ray diffraction.

Online 7 July 2012

 

J. Synchrotron Rad. (2012). 19, 695-700  [ doi:10.1107/S0909049512023801 ]

Structure determination of Pt-coated Au dumbbells via fluctuation X-ray scattering

G. Chen, M. A. Modestino, B. K. Poon, A. Schirotzek, S. Marchesini, R. A. Segalman, A. Hexemer and P. H. Zwart

Synopsis: A fluctuation X-ray scattering experiment has been carried out on platinum-coated gold nanoparticles randomly oriented on a substrate. A complete algorithm for determining the electron density of an individual particle from diffraction patterns of many particles randomly oriented about a single axis is demonstrated.

Online 7 July 2012

 

J. Synchrotron Rad. (2012). 19, 701-704  [ doi:10.1107/S0909049512032700 ]

The new ambient-pressure X-ray photoelectron spectroscopy instrument at MAX-lab

J. Schnadt, J. Knudsen, J. N. Andersen, H. Siegbahn, A. Pietzsch, F. Hennies, N. Johansson, N. Mårtensson, G. Öhrwall, S. Bahr, S. Mähl and O. Schaff

Synopsis: The new instrument for ambient-pressure X-ray photoelectron spectroscopy at the Swedish synchrotron radiation facility MAX IV Laboratory is presented. The instrument is based on the use of a retractable and exchangeable high-pressure cell, which implies that ultrahigh-vacuum conditions are retained in the analysis chamber and that dual ambient pressure and ultrahigh-vacuum use is possible.

Online 7 August 2012

 

J. Synchrotron Rad. (2012). 19, 705-709  [ doi:10.1107/S0909049512029640 ]

Zone-doubled Fresnel zone plates for high-resolution hard X-ray full-field transmission microscopy

J. Vila-Comamala, Y. Pan, J. Lombardo, W. M. Harris, W. K. Chiu, C. David and Y. Wang

Synopsis: The use of zone-doubled Fresnel zone plates for sub-20 nm spatial resolution in full-field transmission X-ray microscopy and tomography at the hard X-ray regime (8-10 keV) is demonstrated.

Online 28 July 2012

 

J. Synchrotron Rad. (2012). 19, 710-716  [ doi:10.1107/S0909049512025782 ]

Simultaneous measurement of X-ray diffraction and ferroelectric polarization data as a function of applied electric field and frequency

J. Wooldridge, S. Ryding, S. Brown, T. L. Burnett, M. G. Cain, R. Cernik, R. Hino, M. Stewart and P. Thompson

Synopsis: A new measurement capability of real-time dynamic in situ electric polarization in single-crystal ferroelectrics has been developed and tested at the European Synchrotron Radiation Facility.

Online 7 July 2012

 

J. Synchrotron Rad. (2012). 19, 717-721  [ doi:10.1107/S0909049512028282 ]

Development of a two-dimensional imaging system of X-ray absorption fine structure

M. Katayama, K. Sumiwaka, K. Hayashi, K. Ozutsumi, T. Ohta and Y. Inada

Synopsis: A two-dimensional imaging system of X-ray absorption fine structure has been developed in the transmission mode and applied to a transient LiMn₂O₄ cathode during the charging process. The heterogeneous distribution of the Mn oxidation state is demonstrated. The system can be applied to analyze the reaction distribution for the electrode of a Li ion secondary battery.

Online 12 July 2012

 

J. Synchrotron Rad. (2012). 19, 722-727  [ doi:10.1107/S0909049512024971 ]

In situ removal of carbon contamination from optics in a vacuum ultraviolet and soft X-ray undulator beamline using oxygen activated by zeroth-order synchrotron radiation

A. Toyoshima, T. Kikuchi, H. Tanaka, J.- Adachi, K. Mase and K. Amemiya

Synopsis: Carbon contamination of optics in an undulator beamline was removed by exposure to oxygen activated with zeroth-order synchrotron radiation.

Online 7 July 2012

 

J. Synchrotron Rad. (2012). 19, 728-750  [ doi:10.1107/S0909049512023618 ]

Analysis and interpretation of the first monochromatic X-ray tomography data collected at the Australian Synchrotron Imaging and Medical beamline

A. W. Stevenson, C. J. Hall, S. C. Mayo, D. Häusermann, A. Maksimenko, T. E. Gureyev, Y. I. Nesterets, S. W. Wilkins and R. A. Lewis

Synopsis: A quantitative analysis and detailed interpretation of the first monochromatic X-ray tomography data collected at the Australian Synchrotron's IMBL is reported. Key issues investigated include the role of the point-spread function, phase-contrast effects and harmonic contamination.

Online 11 July 2012

 

J. Synchrotron Rad. (2012). 19, 751-758  [ doi:10.1107/S0909049512023813 ]

Advantages of a synchrotron bending magnet as the sample illuminator for a wide-field X-ray microscope

M. Feser, M. R. Howells, J. Kirz, J. Rudati and W. Yun

Synopsis: An optimized beamline design is presented for hard X-ray full-field microscopy using bending-magnet radiation.

Online 21 July 2012

 

J. Synchrotron Rad. (2012). 19, 759-767  [ doi:10.1107/S0909049512031147 ]

Residual-density mapping and site-selective determination of anomalous scattering factors to examine the origin of the Fe K pre-edge peak of magnetite

M. Okube, T. Yasue and S. Sasaki

Synopsis: An X-ray resonant scattering study of Fe₃O₄ has revealed that Fe ions occupying both A and B sites cause the pre-edge peak of XANES spectra at the Fe K absorption edge.

Online 3 August 2012

 

J. Synchrotron Rad. (2012). 19, 768-772  [ doi:10.1107/S0909049512026088 ]

Glitch-free X-ray absorption spectrum under high pressure obtained using nano-polycrystalline diamond anvils

N. Ishimatsu, K. Matsumoto, H. Maruyama, N. Kawamura, M. Mizumaki, H. Sumiya and T. Irifune

Synopsis: Nano-polycrystalline diamond has been used to obtain a glitch-free X-ray absorption spectrum under high pressure. The advantage and capability of nano-polycrystalline diamond anvils is discussed by a comparison of the glitch map with that of single-crystal diamond anvils.

Online 11 July 2012

 

J. Synchrotron Rad. (2012). 19, 773-781  [ doi:10.1107/S0909049512026489 ]

Valence structures of aromatic bioactive compounds: a combined theoretical and experimental study

A. P. Wickrama Arachchilage, V. Feyer, O. Plekan, M. Iakhnenko, K. C. Prince and F. Wang

Synopsis: Valence electronic structures of three phenyl derivatives are described.

Online 12 July 2012

 

J. Synchrotron Rad. (2012). 19, 782-788  [ doi:10.1107/S0909049512023990 ]

Iron speciation in ancient Attic pottery pigments: a non-destructive SR-XAS investigation

F. Bardelli, G. Barone, V. Crupi, F. Longo, G. Maisano, D. Majolino, P. Mazzoleni and V. Venuti

Synopsis: A detailed spectroscopic investigation by SR-XAS on the speciation of iron in pigments of decorated pottery fragments of cultural heritage relevance is described. The experiment has been performed on the Italian beamline for absorption and diffraction (BM8-GILDA) at the European Synchrotron Radiation Facility in Grenoble (France).

Online 10 July 2012

 

J. Synchrotron Rad. (2012). 19, 789-796  [ doi:10.1107/S0909049512027252 ]

Focused ion beam preparation of samples for X-ray nanotomography

J. J. Lombardo, R. A. Ristau, W. M. Harris and W. K. S. Chiu

Synopsis: A sample preparation technique for creating three-dimensional structures for study using X-ray nanotomography (XNT) was developed using focused ion beam/scanning electron microscopy. A Ni/YSZ solid-oxide fuel cell anode sample produced using this technique was then measured by XNT to observe the suitability of produced samples in XNT analysis.

Online 12 July 2012

 

J. Synchrotron Rad. (2012). 19, 797-805  [ doi:10.1107/S0909049512029093 ]

Monitoring synchrotron X-ray-induced radiolysis effects on metal (Fe, W) ions in high-temperature aqueous fluids

R. A. Mayanovic, A. J. Anderson, H. A. N. Dharmagunawardhane, S. Pascarelli and G. Aquilanti

Synopsis: X-ray-induced radiolysis effects are observed on metal (Fe, W) ions in aqueous solutions to supercritical conditions. Energy-dispersive X-ray absorption spectroscopy is used to study the kinetics of X-ray-induced radiolysis reactions leading to the oxidation and/or reduction of iron ions in high-temperature aqueous solutions.

Online 28 July 2012

 

J. Synchrotron Rad. (2012). 19, 806-813  [ doi:10.1107/S090904951202612X ]

Simultaneous calorimetric and quick-EXAFS measurements to study the crystallization process in phase-change materials

P. Zalden, G. Aquilanti, C. Prestipino, O. Mathon, B. André, M. Wuttig and M.-V. Coulet

Synopsis: New insights into the complex crystallization process in amorphous Ge₁₅Sb₈₅ phase-change material are presented. The structural mechanisms leading to phase separation are analysed using simultaneous calorimetric and quick-EXAFS measurements.

Online 7 July 2012

 

J. Synchrotron Rad. (2012). 19, 814-820  [ doi:10.1107/S0909049512032414 ]

Exploration of synchrotron Mössbauer microscopy with micrometer resolution: forward and a new backscattering modality on natural samples

L. Yan, J. Zhao, T. S. Toellner, R. Divan, S. Xu, Z. Cai, J. S. Boesenberg, J. M. Friedrich, S. P. Cramer and E. E. Alp

Synopsis: New aspects of synchrotron Mössbauer microscopy have been reported, including micrometer spatial resolution, forward as well as backscattering geometry, and the ability to measure samples with natural isotopic abundance, such as meteorites.

Online 8 August 2012

 

J. Synchrotron Rad. (2012). 19, 821-826  [ doi:10.1107/S0909049512029354 ]

X-ray grating interferometer for biomedical imaging applications at Shanghai Synchrotron Radiation Facility

Y. Xi, B. Kou, H. Sun, J. Qi, J. Sun, J. Mohr, M. Börner, J. Zhao, L. X. Xu, T. Xiao and Y. Wang

Synopsis: A grating interferometer designed for biomedical imaging applications was installed at the BL13W beamline of Shanghai Synchrotron Radiation Facility. With the set-up, in situ carotid artery and carotid vein were visualized in a formalin-fixed mouse using X-rays without contrast agents.

Online 12 July 2012

 

J. Synchrotron Rad. (2012). 19, 827-830  [ doi:10.1107/S0909049512027756 ]

A quantitative study of monochromatic X-ray transmission through zinc wires

Y. D. Wang, A. W. Stevenson, Y. S. Yang, A. Trinchi, S. W. Wilkins, Y. Q. Ren and T. Q. Xiao

Synopsis: Quantitative monochromatic X-ray transmissions through zinc wires are systematically investigated. The possible factors which may cause inconsistencies between experimental and estimated transmissions are analyzed.

Online 10 July 2012

 

J. Synchrotron Rad. (2012). 19, 831-835  [ doi:10.1107/S0909049512030002 ]

DISCO synchrotron-radiation circular-dichroism endstation at SOLEIL

M. Réfrégiers, F. Wien, H.-P. Ta, L. Premvardhan, S. Bac, F. Jamme, V. Rouam, B. Lagarde, F. Polack, J.-L. Giorgetta, J.-P. Ricaud, M. Bordessoule and A. Giuliani

Synopsis: The new synchrotron-radiation circular-dichroism endstation on the UV-visible synchrotron beamline DISCO at the SOLEIL synchrotron is described.

Online 28 July 2012

 

J. Synchrotron Rad. (2012). 19, 836-845  [ doi:10.1107/S0909049512029731 ]

PITRE: software for phase-sensitive X-ray image processing and tomography reconstruction

R.-C. Chen, D. Dreossi, L. Mancini, R. Menk, L. Rigon, T.-Q. Xiao and R. Longo

Synopsis: PITRE, a software package for processing synchrotron-radiation computed-tomography data, is presented.

Online 2 August 2012

 

J. Synchrotron Rad. (2012). 19, 846-847  [ doi:10.1107/S090904951203508X ]

Current events

Online 16 August 2012