Feasibility of macromolecular structure experiments operating at the 3W1 beamline of BSRF in the parasitic mode

Parameters for the 3W1 source at BSRF were determined in both the dedicated and parasitic mode and their suitability for protein crystallography beamline at BSRF were realized. It is discussed that the physics motivation and the design of the 3W1 is compared with similar experimental stations at the Brazilian Light Source (1.37 Gev) and Max-II in Sweden (1.5 GeV). The photon flux from the 3W1 source is about 2×1011 photon/s mA in the wavelength range of 2.0–0.9 Å in parasitic mode and 50–80 times higher in the dedicated mode. Both the dedicated and parasitic modes are suitable for macromolecular structure experiments.