Max Perutz, 1914–2002

Measurement of the speed of X-rays

X-ray pulses from the Advanced Photon Source at Argonne National Laboratory were used to measure the speed of X-rays in the energy range between 21 and 60 keV.

Qu­antitative investigations of supported metal catalysts by ASAXS

Limits and potentiality of anomalous small-angle X-ray scattering for the investigation of supported metal catalysts are discussed. Optimized experimental conditions and measuring strategy are proposed, and data-evaluation methods for obtaining quantitative reliable results are suggested.

Synchrotron fibre diffraction identifies and locates foetal collagenous breast tissue associated with breast carcinoma

Synchrotron fibre diffraction reveals the changes that occur in the connective tissue of the breast in the lead up to breast cancer. These changes are not associated with the fibrillar collagens but rather with collagen type IV.

Fast residual stress mapping using energy-dispersive synchrotron X-ray diffraction on station 16.3 at the SRS

The measurement of strain in engineering specimens and components using white-beam energy-dispersive synchrotron X-ray diffraction is described. Fast and efficient data collection and interpretation procedures allow detailed and accurate spatial maps of strains to be collected.

Short X-ray pulses in a Laue-case crystal

The crystal reflection of short X-ray pulses in Laue geometry is simulated by Fourier transforms using the steady-state solutions from dynamical theory.

New opportunities in trace elements structural characterization: high-energy X-ray absorption near-edge structure spectroscopy

Direct crystal chemistry characterization of rare-earth elements at trace levels in natural garnets has been obtained by means of Nd K-edge X-ray absorption near-edge structure spectroscopy, not available in the literature. The capability of high-energy XANES as a powerful structural tool providing structural details unattainable by using standard methods is demonstrated.

Reconstruction of magnetization density in two-dimensional samples from soft X-ray speckle patterns using the multiple-wavelength anomalous diffraction method

A non-destructive technique for imaging magnetic domains based on the multiple-wavelength anomalous diffraction method is proposed.

Optical switching of X-rays using laser-induced lattice expansion

The optical switching of X-rays has been demonstrated using the Bragg peak shift by laser-induced lattice expansion with a response time of a few hundred picoseconds. A single pulse was extracted from the synchrotron radiation pulse train using a double-crystal arrangement of GaAs, in which the two crystals were irradiated by way of two successive laser pulses with an appropriate time delay.

Fast multigrid fluorescent ion chamber with 0.1 ms time response

The performance of a newly developed fast fluorescent ion chamber is presented. The time response and available frequency range of the chamber are evaluated.

Changes in the perception of biological X-ray absorption spectroscopy between ICBIC 1 and ICBIC 10/BIOXAS 2001: how far have we travelled?

The proceedings of BIOXAS 2001 (Siena, Italy, 2001) and both current and planned activities in the field of biological X-ray absorption spectroscopy are discussed against the perspective of changes in the perception of the technique since ICBIC 1 (Florence, Italy, 1983).

APS explores higher current operation

SESAME goes higher in energy

WHO initiative gives free electronic access to journals

Daresbury releases details of staff publications

Visions of Science: the BESSY SASE-FEL in Berlin-Adlershof

SSRL prepares plans for SPEAR3