STATUS OF THE SMALL-ANGLE SCATTERING STATION AT THE BEIJING SYNCHROTRON-RADIATION FACILITY

Beamline 4B9A at the Beijing Synchrotron Radiation Facility provides f ocused monochromatic radiation in an energy range of 3-10 keV. The sma ll-angle X-ray scattering (SAXS) station that is located at the end of the beamline is equipped with a SAXS camera, a position-sensitive det ector, an on-line data-acquisition and control system and an alignment carriage. Studies in molecular biology and materials science have bee n performed at the station. Some results of SAXS studies of biomembran es are described. The experiments confirm that the angular resolution is better than 0.5 mrad with this setting.