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Design of Beamlines for Synchrotrons
The beamline design group works closely with the optics group, so that the mechanical properties of the manipulators meets all optical requirements. Beamlines are based on UHV chambers; the beamline design group has already showed conservative and unusual approaches to UHV chamber design.
Alignment of beamline manipulators is of extreme importance. Systems for micropositioning of gratings and mirrors in arc seconds as well as motorized actuators for big and heavy chambers were developed and realized.
Novel approach was adopted in the slit (e.g. entrance/exit) design. This design makes use of the small photon beam divergence features. The slit blades are attached to the chamber and offset to each other longitudinally. To achive any opening from zero to maximum one only needs to rotate the whole chamber around a horizontal transversal axis of the slit. Zero opening is easily reachable, without any risk of damage to the blades.
A modified foxtail is a device that transmits a precisely rotational motion to a UHV chamber. The modified foxtail is equipped with a DC servo motor and an incremental rotational encoder. The modified foxtail has the same rate of outgassing during rotation and stop.