J. Synchrotron Rad. (2010). 17, 711-718
[ doi:10.1107/S0909049510031420 ]

Development of diamond-based X-ray detection for high-flux beamline diagnostics

J. Bohon, E. Muller and J. Smedley

Synopsis: Diamond-based beam monitors have been demonstrated to have a linear response with respect to incident X-ray flux over eleven orders of magnitude. Position and temporal sensitivity are reported.

Online 4 September 2010

 

J. Synchrotron Rad. (2010). 17, 719-729
[ doi:10.1107/S0909049510028451 ]

A new technique to examine individual pollutant particle and fibre deposition and transit behaviour in live mouse trachea

M. Donnelley, K. K. W. Siu, K. S. Morgan, W. Skinner, Y. Suzuki, A. Takeuchi, K. Uesugi, N. Yagi and D. W. Parsons

Synopsis: This experiment established synchrotron phase-contrast X-ray imaging techniques to non-invasively examine pollutant particulate deposition and mucociliary transit in live mouse trachea. In this report the behaviour of individual particles of quarry dust, fibreglass, lead ore and reference hollow silver-coated glass beads was examined in live and intact animals.

Online 3 September 2010

 

J. Synchrotron Rad. (2010). 17, 730-736
[ doi:10.1107/S0909049510038756 ]

Potassium doping effect on the lattice softening and electronic structure of Ba_1-xK_xFe₂As₂ probed by X-ray absorption spectroscopy

J. Cheng, W. S. Chu, G. Wu, H. F. Zhao, W. Xu, J. Zhou, L. J. Zhang, X. H. Chen and Z. Y. Wu

Synopsis: The potassium doping effect on the lattice softening and electronic structure of Ba_1-xK_xFe₂As₂ has been investigated by Fe and As K-edge X-ray absorption spectroscopy.

Online 9 October 2010

 

J. Synchrotron Rad. (2010). 17, 737-742
[ doi:10.1107/S090904951003726X ]

Indirectly illuminated X-ray area detector for X-ray photon correlation spectroscopy

Y. Shinohara, R. Imai, H. Kishimoto, N. Yagi and Y. Amemiya

Synopsis: An indirectly illuminated X-ray area detector employed for X-ray photon correlation spectroscopy is discussed.

Online 1 October 2010

 

J. Synchrotron Rad. (2010). 17, 743-750
[ doi:10.1107/S0909049510028335 ]

Raster microdiffraction with synchrotron radiation of hydrated biopolymers with nanometre step-resolution: case study of starch granules

C. Riekel, M. Burghammer, R. J. Davies, E. Di Cola, C. König, H. T. Lemke, J.-L. Putaux and S. Schöder

Synopsis: Radiation damage propagation was examined in starch granules by synchrotron radiation micro- and nano-diffraction techniques from cryo- to room temperatures. Careful dose limitation allowed raster-diffraction experiments with 500 nm step resolution to be performed.

Online 3 September 2010

 

J. Synchrotron Rad. (2010). 17, 751-760
[ doi:10.1107/S0909049510039774 ]

Coherent X-ray diffraction investigation of twinned microcrystals

M. A. G. Aranda, F. Berenguer, R. J. Bean, X. Shi, G. Xiong, S. P. Collins, C. Nave and I. K. Robinson

Synopsis: Pseudo-merohedrally twinned manganite microcrystals have been studied by coherent diffraction. Several diffraction peaks were split, as expected from the twin law. Furthermore, the peaks were broken up into fringes and speckles. This method represents a new way of measuring twin domains and could allow mapping out twin and strain distributions within microcrystals.

Online 8 October 2010

 

J. Synchrotron Rad. (2010). 17, 761-768
[ doi:10.1107/S0909049510034308 ]

Design and construction of a compact end-station at NSRRC for circular-dichroism spectra in the vacuum-ultraviolet region

S.-H. Liu, Y.-H. Lin, L.-J. Huang, S.-W. Luo, W.-L. Tsai, S.-Y. Chiang and H.-S. Fung

Synopsis: A synchrotron radiation circular dichroism end-station with a usable wavelength region of 130-330 nm is implemented at beamline BL04B at NSRRC in Taiwan for biological research.

Online 1 October 2010

 

J. Synchrotron Rad. (2010). 17, 769-773
[ doi:10.1107/S0909049510030372 ]

Time-resolved SAXS measurements facilitated by online HPLC buffer exchange

M. H. Jensen, K. N. Toft, G. David, S. Havelund, J. Pérez and B. Vestergaard

Synopsis: A simple method for collecting time-resolved small-angle X-ray scattering data is presented. A combination of SAXS and online HPLC enables data collection from systems where a reaction is triggered by removal of a species or a change in buffer conditions.

Online 14 September 2010

 

J. Synchrotron Rad. (2010). 17, 774-781
[ doi:10.1107/S0909049510028566 ]

Software for the high-throughput collection of SAXS data using an enhanced Blu-Ice/DCS control system

S. Classen, I. Rodic, J. Holton, G. L. Hura, M. Hammel and J. A. Tainer

Synopsis: The Blu-Ice GUI and Distributed Control System (DCS) developed in the Macromolecular Crystallography Group at the Stanford Synchrotron Radiation Laboratory has been optimized, extended and enhanced to suit the specific needs of the SAXS endstation at the SIBYLS beamline at the Advanced Light Source. The customizations reported here provide one potential route for other SAXS beamlines in need of robust and efficient beamline control software.

Online 3 September 2010

 

J. Synchrotron Rad. (2010). 17, 782-785
[ doi:10.1107/S0909049510038112 ]

The study of the reconstructed three-dimensional structure of a solid-oxide fuel-cell cathode by X-ray nanotomography

Y. Guan, W. Li, Y. Gong, G. Liu, J. Gelb, X. Zhang, Y. Xiong, Y. Tian and H. Wang

Synopsis: The high-resolution X-ray nanotomography technique is applied to reconstruct the three-dimensional microstructure of a solid-oxide fuel-cell cathode. Some key parameters are calculated based on the reconstructed data.

Online 1 October 2010

 

J. Synchrotron Rad. (2010). 17, 786-790
[ doi:10.1107/S0909049510028487 ]

Beam-induced damage on diffractive hard X-ray optics

K. Nygård, S. Gorelick, J. Vila-Comamala, E. Färm, A. Bergamaschi, A. Cervellino, F. Gozzo, B. D. Patterson, M. Ritala and C. David

Synopsis: Beam-induced damage on diffractive hard X-ray optics is studied by means of X-ray diffraction and scanning electron microscopy.

Online 2 September 2010

 

J. Synchrotron Rad. (2010). 17, 791-798
[ doi:10.1107/S0909049510031444 ]

Extended soft X-ray emission spectroscopy: quantitative assessment of emission intensities

P. Pistor, I. Kötschau, A. Grimm, C. Jung, I. Lauermann, M. Ch. Lux-Steiner and C.-H. Fischer

Synopsis: The quantitative evaluation of X-ray emission is extended to the soft X-ray regime (100-1500 eV). Available absorption coefficients are verified and thin film thicknesses of layered polycrystalline model systems determined. A scanning procedure is presented that is able to resolve lateral inhomogeneities.

Online 2 September 2010

 

J. Synchrotron Rad. (2010). 17, 799-803
[ doi:10.1107/S0909049510028311 ]

A variable-wavelength-based approach of phase retrieval for contrast transfer function based methods

Y. S. Kashyap, A. Agrawal, P. S. Sarkar, M. Shukla, T. Roy and A. Sinha

Synopsis: Application of a multi-wavelength approach for phase retrieval within the framework of the contrast transfer function based formalism is discussed.

Online 2 September 2010

 

J. Synchrotron Rad. (2010). 17, 804-809
[ doi:10.1107/S0909049510031250 ]

Ratio-contrast imaging of dual-energy absorption for element mapping with a scanning transmission X-ray microscope

X. Z. Zhang, Z. J. Xu, R. Z. Tai, X. J. Zhen, Y. Wang, Z. Guo, R. Yan, R. Chang, B. Wang, M. Li, J. Zhao and F. Gao

Synopsis: The detection of chemical mapping with a spatial resolution of 30 nm has been achieved with a scanning transmission X-ray microscope at the Shanghai Synchrotron Radiation Facility.

Online 4 September 2010

 

J. Synchrotron Rad. (2010). 17, 810-812
[ doi:10.1107/S0909049510039956 ]

KDP:Mn piezoelectric coefficients obtained by X-ray diffraction

E. J. L. Gomes, S. G. C. Moreira, A. S. de Menezes, A. O. dos Santos, D. P. Pereira, P. C. de Oliveira and C. M. R. Remédios

Synopsis: Crystals of pure potassium dihydrogen phosphate (KDP) and Mn-doped KDP were grown from a water solution by the slow evaporation method and their piezoelectric properties were studied by X-ray diffraction methods.

Online 14 October 2010

 

J. Synchrotron Rad. (2010). 17, 813-816
[ doi:10.1107/S0909049510040008 ]

Phase-contrast X-ray imaging of the gas diffusion layer of fuel cells

S. Takeya, A. Yoneyama, J. Miyamoto, Y. Gotoh, K. Ueda, K. Hyodo and T. Takeda

Synopsis: Carbon-paper gas diffusion layers of fuel cells imaged via X-ray interferometric and diffraction-enhanced imaging techniques have proven that these phase-contrast X-ray imaging techniques are valuable for their tomographic imaging and in situ observations of the transport and distribution of water within.

Online 12 October 2010

 

J. Synchrotron Rad. (2010). 17, 817-820
[ doi:10.1107/S0909049510035363 ]

Hard X-ray imaging for landslide research

B. M. Weon, J. H. Je and G. Gremaud

Synopsis: A hard X-ray imaging approach enables us to track granular displacements and helps to understand how underwater landslides break out and evolve.

Online 16 September 2010

 

J. Synchrotron Rad. (2010). 17, 821-822
[ doi:10.1107/S0909049510040896 ]

Current events

Online 14 October 2010