A new gap separation mechanism for APS insertion devices

Trakhtenberg, E. M.; Tcheskidov, V. G.; Den Hartog, P. K.; Deriy, B. N.; Erdmann, M.; Makarov, O. A.; Moog, E. R.
June 2000
AIP Conference Proceedings;2000, Vol. 521 Issue 1, p363
Academic Journal
A new gap separation mechanism for use with the standard Advanced Photon Source (APS) 3.3-cm-period undulator magnetic structures has been designed and built, and the first system has been installed in the APS storage ring. The system allows a minimum magnetic gap of 10 mm for use with the APS 8-mm insertion device vacuum chambers. The mechanism is a bolted steel frame structure with a simple 4-motor mechanical drive train. The control system uses servomotors with incremental rotary encoders and virtual absolute linear encoders. © 2000 American Institute of Physics.


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