July 2003 issue
Cover illustration: Interference patterns observed by a two-dimensional interferometer for beam-profile measurement and a calibrated point-spread function, see Masaki and Takano, pages 295-302.
A two-dimensional visible synchrotron light interferometer which has been newly developed for beam-profile measurement at the SPring-8 storage ring is reported.
The bunching effect due to the chaotic nature of the synchrotron radiation in the VUV region has been observed by a new technique.
Experiments have been carried out which clarify that a YB66 double-crystal monochromator is well suited for soft X-ray beamlines on third-generation light sources.
The performance of a liquid-nitrogen-cooled silicon crystal monochromator has been studied by both finite-element modeling and experiments. The calculated rocking-curve width versus heat load is in excellent agreement with experiment.
A versatile electrochemical in situ reaction cell for long-term hard X-ray experiments on battery electrodes is described. Applications include the small-angle scattering, diffraction and absorption spectroscopy of lithium manganese oxide electrodes.
Atmospheric pressure conversion electron yield X-ray absorption measurements at temperatures from 4.2 to 300 K provide information on the temperature dependence of structural and dynamic properties of embedded clusters and thin films. A new device capable of electron yield measurements in this temperature range has been installed on beamline D42 in LURE.
A furnace has been designed for in situ XANES spectroscopy of silicate melts, allowing, for the first time, the direct identification of Cr2+ in an Fe-bearing basaltic melt.
The hexagonal crystal structures of 1,2-dichlorotrifluoroethane (HCFC-123a) and 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124) have been studied at temperatures down to 60 K in a rotating glass capillary cell with a gas handling system.