Journal of Synchrotron Radiation

 

J. Synchrotron Rad. (2007). 14, 453-470  [ doi:10.1107/S0909049507037600 ]

Coherent X-ray scattering and lensless imaging at the European XFEL Facility

I. A. Vartanyants, I. K. Robinson, I. McNulty, C. David, P. Wochner and Th. Tschentscher

Synopsis: High-power coherent X-ray beams produced by future X-ray free-electron lasers are an ideal source for coherent X-ray diffraction imaging of nanoscale condensed matter, materials and biological samples. The scientific case, requirements and the possible realization of the coherent X-ray diffraction imaging experiments at the European XFEL Facility are presented.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 471-476  [ doi:10.1107/S0909049507040228 ]

Observation of interference effects in coherent diffraction of nanocrystals under X-ray standing-wave illumination

P. Gryko, M. Liang, R. Harder and I. K. Robinson

Synopsis: Coherent X-ray diffraction measurements on gold nanocrystals were found to produce novel double diffraction patterns, which are explained in this paper.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 477-482  [ doi:10.1107/S0909049507044743 ]

Structural properties of `naked' gold nanoparticles formed by synchrotron X-ray irradiation

C.-H. Wang, C.-C. Chien, Y.-L. Yu, C.-J. Liu, C.-F. Lee, C.-H. Chen, Y. Hwu, C.-S. Yang, J.-H. Je and G. Margaritondo

Synopsis: The formation of colloidal unmodified (`naked') gold nanoparticles is investigated by irradiation of a precursor solution with X-rays from a synchrotron source.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 483-486  [ doi:10.1107/S0909049507040289 ]

Degree of circular polarization of soft X-rays emitted from a multi-polarization-mode undulator characterized by means of magnetic circular dichroism measurements

M. Oura, T. Nakamura, T. Takeuchi, Y. Senba, H. Ohashi, K. Shirasawa, T. Tanaka, M. Takeuchi, Y. Furukawa, T. Hirono, T. Ohata, H. Kitamura and S. Shin

Synopsis: The degree of circular polarization of soft X-rays emitted from the multi-polarization-mode undulator of BL17SU at SPring-8 was measured by means of magnetic circular dichroism in core-level X-ray absorption spectroscopy.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 487-491  [ doi:10.1107/S0909049507039209 ]

A multi-sample automatic system for in situ electrochemical X-ray diffraction synchrotron measurements

F. Rosciano, M. Holzapfel, H. Kaiser, W. Scheifele, P. Ruch, M. Hahn, R. Kötz and P. Novák

Synopsis: A cost-effective in situ synchrotron-based X-ray diffraction method to study ion intercalation into host materials from non-aqueous electrolytes has been developed. The method is based on `coffee bag' electrochemical cells and an automatic sample changer for up to 32 parallel experiments.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 492-499  [ doi:10.1107/S0909049507042173 ]

In situ high-energy X-ray diffraction study of a bioactive calcium silicate foam immersed in simulated body fluid

V. FitzGerald, K. O. Drake, J. R. Jones, M. E. Smith, V. Honkimäki, T. Buslaps, M. Kretzschmer and R. J. Newport

Synopsis: An in situ time-resolved high-energy X-ray diffraction study of the structural evolution of a bioactive foamed sol-gel calcia-silica glass when immersed in simulated body fluid at 310 K is reported. The dissolution of the glass and the associated formation of calcium phosphates, and finally of hydroxyapatite, is revealed.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 500-511  [ doi:10.1107/S0909049507042513 ]

Nitrogen K-edge XANES - an overview of reference compounds used to identify `unknown' organic nitrogen in environmental samples

P. Leinweber, J. Kruse, F. L. Walley, A. Gillespie, K.-U. Eckhardt, R. Blyth and T. Regier

Synopsis: Nitrogen K-edge XANES spectroscopy has been used to develop a systematic overview on spectral features of all major N functions in soil and environmental samples. This information provides a basis to develop N K-edge XANES to study the molecular composition and ecological functions of previously unidentified N.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 512-521  [ doi:10.1107/S0909049507044664 ]

Refraction and scattering of X-rays in analyzer-based imaging

H. Suhonen, M. Fernández, A. Bravin, J. Keyriläinen and P. Suortti

Synopsis: Intensity observed in analyzer-based imaging is separated into scattered and non-scattered components using pseudo-Voigtian functions. Maps of attenuation, refraction angle and scattering are presented.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 522-526  [ doi:10.1107/S0909049507037296 ]

Feasibility of a low-energy X-ray free-electron laser

T.-Y. Lee and J. Choi

Synopsis: X-ray free-electron laser facilities under construction are all huge and expensive, consisting of high-energy linear accelerators and long undulators. This paper discusses how small a hard X-ray free-electron laser facility can be.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 527-531  [ doi:10.1107/S0909049507042409 ]

Windows for small-angle X-ray scattering cryostats

L. Lurio, N. Mulders, M. Paetkau, P. R. Jemian, S. Narayanan and A. Sandy

Synopsis: The parasitic scattering from a variety of window materials suitable for X-ray cryostats is characterized using small-angle X-ray scattering.

Online 17 October 2007

 

J. Synchrotron Rad. (2007). 14, 532-534  [ doi:10.1107/S0909049507049242 ]

Current events

Online 17 October 2007