J. Synchrotron Rad. (2012). 19, 293-306
[ doi:10.1107/S0909049512008047 ]

Mapping spatial and field dependence of magnetic domain memory by soft X-ray speckle metrology

K. Chesnel, J. Nelson, B. Wilcken and S. D. Kevan

Synopsis: An introduction to magnetic domain memory (MDM) is given, including a description of the technique of coherent X-ray magnetic scattering, a detailed description of the speckle-correlation technique, with steps to optimize the MDM signal with field and spatial dependencies, and results showing MDM maps as a function of field, spatial scale and temperature.

Online 4 April 2012

 

J. Synchrotron Rad. (2012). 19, 307-318
[ doi:10.1107/S0909049512003044 ]

High-energy transmission Laue micro-beam X-ray diffraction: a probe for intra-granular lattice orientation and elastic strain in thicker samples

F. Hofmann, X. Song, B. Abbey, T.-S. Jun and A. M. Korsunsky

Synopsis: An extension of the micro-beam Laue diffraction technique to higher photon energies (50-150 keV) for improved penetration into thick samples is presented. The new technique is used to study the grain-level deformation behaviour of a polycrystalline nickel sample during in situ tensile deformation.

Online 16 March 2012

 

J. Synchrotron Rad. (2012). 19, 319-322
[ doi:10.1107/S090904951200310X ]

Synchrotron-radiation phase-contrast imaging of human stomach and gastric cancer: in vitro studies

L. Tang, G. Li, Y.-S. Sun, J. Li and X.-P. Zhang

Synopsis: Synchrotron-radiation phase-contrast imaging can demonstrate the subtle structures of stomach and gastric cancer, which include the tiny gastric pits, grooves and blood vessels, and the infiltration of cancer in the submucosa layer.

Online 15 March 2012

 

J. Synchrotron Rad. (2012). 19, 323-331
[ doi:10.1107/S0909049512004463 ]

Energy resolution of the CdTe-XPAD detector: calibration and potential for Laue diffraction measurements on protein crystals

K. Medjoubi, A. Thompson, J.-F. Bérar, J.-C. Clemens, P. Delpierre, P. Da Silva, B. Dinkespiler, R. Fourme, P. Gourhant, B. Guimaraes, S. Hustache, M. Idir, J.-P. Itié, P. Legrand, C. Menneglier, P. Mercere, F. Picca and J.-P. Samama

Synopsis: Successful energy calibration of a CdTe sensor pixel array detector has allowed the collection of non-energy-overlapped Laue diffraction patterns from a lysozyme crystal. Potential applications for `in situ' crystal screening are discussed.

Online 15 March 2012

 

J. Synchrotron Rad. (2012). 19, 332-339
[ doi:10.1107/S0909049512005237 ]

Evaluating the peak-to-valley dose ratio of synchrotron microbeams using PRESAGE fluorescence

N. Annabell, N. Yagi, K. Umetani, C. Wong and M. Geso

Synopsis: The peak-to-valley dose ratio of a microbeam array can be measured by fluorescence of PRESAGE dosimeters. Peak-to-valley dose ratios are calculated using this new technique and also by EBT2 film.

Online 15 March 2012

 

J. Synchrotron Rad. (2012). 19, 340-346
[ doi:10.1107/S0909049512002348 ]

Study of radiation damage induced by 12 keV X-rays in MOS structures built on high-resistivity n-type silicon

J. Zhang, I. Pintilie, E. Fretwurst, R. Klanner, H. Perrey and J. Schwandt

Synopsis: MOS structures fabricated on high-resistivity n-type silicon are irradiated by 12 keV X-rays to doses between 10 kGy and 1 GGy, and the radiation-induced oxide charges and interface traps are characterized and their densities determined.

Online 15 March 2012

 

J. Synchrotron Rad. (2012). 19, 347-351
[ doi:10.1107/S0909049512003950 ]

Improved count rate corrections for highest data quality with PILATUS detectors

P. Trueb, B. A. Sobott, R. Schnyder, T. Loeliger, M. Schneebeli, M. Kobas, R. P. Rassool, D. J. Peake and C. Broennimann

Synopsis: A Monte Carlo simulation is presented, which computes the rate correction factors taking into account the detector settings and the time structure of the X-ray beam. The results show good agreement with experimentally determined correction factors.

Online 16 March 2012

 

J. Synchrotron Rad. (2012). 19, 352-358
[ doi:10.1107/S0909049512003287 ]

Development of a laser-based heating system for in situ synchrotron-based X-ray tomographic microscopy

J. L. Fife, M. Rappaz, M. Pistone, T. Celcer, G. Mikuljan and M. Stampanoni

Synopsis: A laser-based heating system has been developed at the TOMCAT beamline of the Swiss Light Source for in situ observations of moderate-to-high-temperature applications of materials.

Online 16 March 2012

 

J. Synchrotron Rad. (2012). 19, 359-365
[ doi:10.1107/S090904951200235X ]

Micrometre resolution of a charge integrating microstrip detector with single photon sensitivity

A. Schubert, A. Bergamaschi, C. David, R. Dinapoli, S. Elbracht-Leong, S. Gorelick, H. Graafsma, B. Henrich, I. Johnson, M. Lohmann, A. Mozzanica, V. Radicci, R. Rassool, L. Schädler, B. Schmitt, X. Shi and B. Sobott

Synopsis: The spatial resolution of a single-photon-resolving integrating system has been improved using a non-linear charge interpolation approach. The resolution limit for a 20 µm-pitch sensor is presented.

Online 15 March 2012

 

J. Synchrotron Rad. (2012). 19, 366-374
[ doi:10.1107/S0909049512003020 ]

Aspherical lens shapes for focusing synchrotron beams

M. Sanchez del Rio and L. Alianelli

Synopsis: Aspherical surface shapes (Cartesian oval, ellipse and parabola) to focus X-ray beams are discussed, and their performances in a synchrotron beamline are simulated.

Online 17 March 2012

 

J. Synchrotron Rad. (2012). 19, 375-380
[ doi:10.1107/S0909049512003937 ]

Quantitative performance measurements of bent crystal Laue analyzers for X-ray fluorescence spectroscopy

C. Karanfil, G. Bunker, M. Newville, C. U. Segre and D. Chapman

Synopsis: The performance of bent crystal Laue optics for fluorescence analysis is quantitatively measured, and the implications for the signal-to-noise ratio in X-ray absorption fine-structure spectroscopic measurements are assessed.

Online 17 March 2012

 

J. Synchrotron Rad. (2012). 19, 381-387
[ doi:10.1107/S0909049512005043 ]

Transmission-mode diamond white-beam position monitor at NSLS

E. M. Muller, J. Smedley, J. Bohon, X. Yang, M. Gaowei, J. Skinner, G. De Geronimo, M. Sullivan, M. Allaire, J. W. Keister, L. Berman and A. Héroux

Synopsis: Diamond transmission-mode white-beam position monitors installed at undulator beamline X25 at the National Synchrotron Light Source are described.

Online 17 March 2012

 

J. Synchrotron Rad. (2012). 19, 388-393
[ doi:10.1107/S0909049512006772 ]

Performance upgrade in the JAEA actinide science beamline BL23SU at SPring-8 with a new twin-helical undulator

Y. Saitoh, Y. Fukuda, Y. Takeda, H. Yamagami, S. Takahashi, Y. Asano, T. Hara, K. Shirasawa, M. Takeuchi, T. Tanaka and H. Kitamura

Synopsis: The commissioning studies and an application to a uranium compound with the helicity-switching mode of a new twin-helical undulator installed in soft X-ray beamline BL23SU at SPring-8 are described.

Online 17 March 2012

 

J. Synchrotron Rad. (2012). 19, 394-399
[ doi:10.1107/S0909049512008059 ]

XANES analysis of spectral properties and structures of arsenate adsorption on TiO₂ surfaces

G. He, G. Pan and M. Zhang

Synopsis: The structural origin of experimental XANES is identified using self-consistent multiple-scattering methods. The spectral contributions of different coordination shells is characterized using path expansion calculations.

Online 20 March 2012

 

J. Synchrotron Rad. (2012). 19, 400-407
[ doi:10.1107/S0909049512006760 ]

Spectroelectrochemical cell for in situ studies of solid oxide fuel cells

A. Hagen, M. L. Traulsen, W.-R. Kiebach and B. S. Johansen

Synopsis: An in situ spectroelectrochemical cell is presented, which allows the investigation of electrochemical and chemical/structural properties by simultaneous electrochemical impedance spectroscopy and X-ray absorption near-edge spectroscopy, at temperatures of up to 1073 K and in the presence of relevant gases and under polarization. The cell was used to study a solid oxide fuel cell with a lanthanum strontium cobaltite ferrite cathode.

Online 21 March 2012

 

J. Synchrotron Rad. (2012). 19, 408-416
[ doi:10.1107/S0909049512009272 ]

Implementation of a beam deflection system for studies of liquid interfaces on beamline I07 at Diamond

T. Arnold, C. Nicklin, J. Rawle, J. Sutter, T. Bates, B. Nutter, G. McIntyre and M. Burt

Synopsis: The design and implementation of some new optics that allow X-ray reflectivity measurements from liquid surfaces on beamline I07 at Diamond Light Source are described. The design allows for easy combination with complementary off-specular techniques and is tunable over the energy range 10-28 keV.

Online 29 March 2012

 

J. Synchrotron Rad. (2012). 19, 417-424
[ doi:10.1107/S0909049512009703 ]

The SAMBA quick-EXAFS monochromator: XAS with edge jumping

E. Fonda, A. Rochet, M. Ribbens, L. Barthe, S. Belin and V. Briois

Synopsis: The QEXAFS monochromator of the SAMBA beamline is presented; one example on a bimetallic catalyst illustrates its capability to quickly alternate the measurement of two far absorption edges by `edge jumping'.

Online 31 March 2012

 

J. Synchrotron Rad. (2012). 19, 425-427
[ doi:10.1107/S0909049512005249 ]

A unique approach to accurately measure thickness in thick multilayers

B. Shi, J. M. Hiller, Y. Liu, C. Liu, J. Qian, L. Gades, M. J. Wieczorek, A. T. Marander, J. Maser and L. Assoufid

Synopsis: A new method to improve the accuracy of the image processing for the fabrication of thick multilayer optics is described.

Online 20 March 2012

 

J. Synchrotron Rad. (2012). 19, 428-430
[ doi:10.1107/S0909049512004050 ]

An optimized side-cooling scheme for a collimation mirror at the SSRF

Z. Xu and N. Wang

Synopsis: An optimization design of a side-cooling scheme for a mirror at the Shanghai Synchrotron Radiation Facility (SSRF) is presented.

Online 16 March 2012

 

J. Synchrotron Rad. (2012). 19, 431-434
[ doi:10.1107/S0909049512008072 ]

An integrated high-throughput data acquisition system for biological solution X-ray scattering studies

A. Martel, P. Liu, T. M. Weiss, M. Niebuhr and H. Tsuruta

Synopsis: A fully automated high-throughput solution X-ray scattering data collection system, developed for protein structure studies at beamline 4-2 of the Stanford Synchrotron Radiation Lightsource, is described.

Online 17 March 2012

 

J. Synchrotron Rad. (2012). 19, 435-441
[ doi:10.1107/S0909049512008801 ]

I19, the small-molecule single-crystal diffraction beamline at Diamond Light Source

H. Nowell, S. A. Barnett, K. E. Christensen, S. J. Teat and D. R. Allan

Synopsis: The small-molecule single-crystal diffraction beamline (I19) at Diamond Light Source is described. Key technical details are explained and some recent scientific results are highlighted.

Online 31 March 2012

 

J. Synchrotron Rad. (2012). 19, 442-449
[ doi:10.1107/S0909049512006395 ]

Facilities for macromolecular crystallography at the Helmholtz-Zentrum Berlin

U. Mueller, N. Darowski, M. R. Fuchs, R. Förster, M. Hellmig, K. S. Paithankar, S. Pühringer, M. Steffien, G. Zocher and M. S. Weiss

Synopsis: The three macromolecular crystallography beamlines BL14.1, BL14.2 and BL14.3 at the BESSY II storage ring at the Helmholtz-Zentrum Berlin are described.

Online 20 March 2012

 

J. Synchrotron Rad. (2012). 19, 450-454
[ doi:10.1107/S0909049512009727 ]

Beamline AR-NW12A: high-throughput beamline for macromolecular crystallography at the Photon Factory

L. M. G. Chavas, N. Matsugaki, Y. Yamada, M. Hiraki, N. Igarashi, M. Suzuki and S. Wakatsuki

Synopsis: A description of the high-throughput AR-NW12A beamline at the Photon Factory is presented, together with new developments.

Online 31 March 2012

 

J. Synchrotron Rad. (2012). 19, 455-461
[ doi:10.1107/S0909049512009715 ]

ID29: a high-intensity highly automated ESRF beamline for macromolecular crystallography experiments exploiting anomalous scattering

D. de Sanctis, A. Beteva, H. Caserotto, F. Dobias, J. Gabadinho, T. Giraud, A. Gobbo, M. Guijarro, M. Lentini, B. Lavault, T. Mairs, S. McSweeney, S. Petitdemange, V. Rey-Bakaikoa, J. Surr, P. Theveneau, G. A. Leonard and C. Mueller-Dieckmann

Synopsis: The current status and future plans of the highly intense and tunable structural biology beamline ID29 at the ESRF, Grenoble, is presented.

Online 31 March 2012

 

J. Synchrotron Rad. (2012). 19, 462-467
[ doi:10.1107/S0909049512009776 ]

Adapting federated cyberinfrastructure for shared data collection facilities in structural biology

I. Stokes-Rees, I. Levesque, F. V. Murphy, W. Yang, A. Deacon and P. Sliz

Synopsis: It has been difficult, historically, to manage and maintain early-stage experimental data collected by structural biologists in synchrotron facilities. This work describes a prototype system that adapts existing federated cyberinfrastructure technology and techniques to manage collected data at synchrotrons and to facilitate the efficient and secure transfer of data to the owner's home institution.

Online 6 April 2012

 

J. Synchrotron Rad. (2012). 19, 468-469
[ doi:10.1107/S0909049512015713 ]

Current events

Online 19 April 2012