The Swiss-Norwegian Beamline – BM01A

1. Future Combined diffraction and Raman scattering experiments, for both single crystals and powders. • KUMA6 DIFFRACTOMETER • fast read-out CCD for both single crystal and powder diffraction • flexible geometry + combined use of area and point detectors • Diffraction experiment with laser-exited crystal at 13.5 K • MAR345 Image Plate • low background - diffuse scattering experiments • fixed geometry (- rotation) – easy to install auxiliary equipment • MARCCD detector is available for fast data collection Examples of In-Situ Experiments Heatable high-pressure cell (left) Gas flow system (right) CryoStream 700+ ( 90-500 K), HeliJet ~13.5 – 70 K, He Cryostat ~4.5 – 300K, Heat Blowers ~ 300- 1000 K, DAC Pressure cells, gas flow systems… The Swiss-Norwegian Beamline – BM01A D Chernyshov§, V Dmitriev§, Y Filinchuk§ and P Pattison§* §Swiss-Norwegian Beamline, ESRF, Grenoble, FRANCE *Laboratory of Crystallography, EPFL, CH-1015, Lausanne The Swiss-Norwegian beamlines at the European Synchrotron Radiation Facility have now been in user operation for over a decade. Over the last few years, the scientific activities on the beamline have become more and more focused on solving problems in materials science and crystal chemistry. We present here an overview of the operational characteristics of the beamline and the equipment available on BM01A. Although originally conceived as a station for single crystal diffraction and macromolecular crystallography, the combination of point detector, CCD area detectors and image plate provides a very versatile tool for many types of X-ray diffraction and scattering experiments. Some examples are given of recent results which demonstrate the capabilities of the beamline. INSTRUMENTS RESEARCH Powders Single Crystals Structure Solution In-situ studies Evolution of Structure Mapping of Reciprocal Space Refinement of Structure Fast temperature scanning of weak superstructure reflections Phase Transitions Since it began operation in 1995, the scientific productivity of the Swiss-Norwegian beamlines has increased dramatically. The number of publications appearing from both beamlines together has now reached a level of about 70 per year. Improvements in area detector performance using both image plate and CCD technology has now reached a level where a high quality structure solution can be obtained in less than one hour. The use of area detectors for the collection of time-resolved, in-situ powder studies looks very promising, and we expect to see intensive use of these techniques in materials research at SNBL. More information at www.snbl.org