`White beam' synchrotron X-ray interferometry

The first successful moiré topography using the 'white beam' of synchrotron radiation from the DCI storage ring is reported. Moiré X-ray topography is applied in order to study in quantitative detail the beam heating which inevitably occurs at powerful storage-ring sources. The maximum temperature rise observed was 1.39 K and several ways of reducing the thermal load are examined in detail. Schemes for the implementation of high-resolution interferometric spectroscopy and the criteria of elastic and thermal design are discussed.