Production of synchrotron X-ray biprism interference patterns with control of fringe spacing

Successful recording of X-ray biprism interference patterns at several wavelengths has been achieved. The application of biprism fringe visibility measurements in synchrotron X-ray beam characterization studies is proposed.

A low-profile monolithic multi-element Ge detector for X-ray fluorescence applications

A small footprint detector has been designed, built and commissioned for X-ray fluorescence applications. It provides an active area of greater than 90% compared with 36% of the conventional design.

Rotated-inclined focusing monochromator with simultaneous tuning of asymmetry factor and radius of curvature over a wide wavelength range

In order to achieve simultaneous tuning of the beam demagnification rate and the radius of curvature for focusing over a wide wavelength range, a new single-crystal focusing monochromator has been developed.

Scanning X-ray spectrometer for high-resolution Compton profile measurements at ESRF

A scanning-type X-ray spectrometer for Compton profile measurements has been built at the ESRF. The construction and performance are described in the present paper.

Powder X-ray diffraction under extreme conditions of pressure and temperature

Examples of structural studies on materials under high pressure and temperature demonstrating the strength of combining high-pressure/temperature cells with area detectors, enabling detailed structural information to the extracted using Rietveld refinement.

A new approach for indexing powder diffraction data based on whole-profile fitting and global optimization using a genetic algorithm

This paper describes a new technique for indexing powder diffraction data, based on consideration of the whole powder diffraction profile and using a genetic algorithm for global optimization of the lattice parameters.

The overlap between the thin- and thick-filament reflections in the small-angle X-ray diffraction pattern from a molluscan smooth muscle

By small-angle X-ray diffraction studies with a high angular resolution, reflections due to long and similar structural periods of the two kinds of protein filaments were separated.

Actinide coordination sphere in various U, Np and Pu nitrato coordination complexes

In this work, actinide (U, Np, Pu) nitrato species are probed by L_III-edge X-ray absorption spectroscopy measurements.

Combining CXMD and XSW to study magnetic and geometric properties of thin films: Gd/Fe(100)

Gd monolayer films on Fe(100) are studied using circular X-ray magnetic dichroism and X-ray standing waves. The combination of the two techniques offers new perspectives for the in situ characterization of electronic and structural properties of thin magnetic films on crystalline substrates.

X-ray powder diffraction with hybrid semiconductor pixel detectors

Report on the use, for the first time, of semiconductor pixel detectors in X-ray powder diffraction.

Computer network system with security for a protein data collection system at the Photon Factory

The new network, based on a 100 Mbps Ethernet, consists of a DEC Alpha Server 4000 with a 115 Gbytes RAID disk, DLT as a backup device, CISCO PIX-32 as a firewall between the TARA private network and KEK, and a 100 Mbps switching hub to be linked to image-plate readers and work stations.