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Diamond Light Source has chosen the UK Astronomy Technology Centre to design and construct a vacuum operating six axis goniometer with sample cooling for its Long-Wavelength Macromolecular Crystallography Beamline I23.

This Beamline will be a unique facility for solving the crystallographic phase problem using the small anomalous signals from sulphur or phosphorous present in native protein or RNA/DNA "crystals". The crystals have to be positioned and rotated within a sphere of confusion of less than 3 microns diameter at cryogenic temperatures in vacuum during the experiments.

This combination of cooling, vacuum and precision is provided by the Goniometer and will be unique worldwide.

Science and Technology Facilities Council Switchboard: 01793 442000