USER OPERATION AND UPGRADES OF THE FAST ORBIT FEEDBACK AT THE SLS

M. Böge, B. Keil, A. Lüdeke, T. Schilcher, Paul Scherrer Institute, Villigen, Switzerland

Abstract:

A report on the performance of the fast orbit feedback (FOFB) in its 2nd year of user operation is given. Photon beam position monitors (XBPM) have been included by means of a slow feedback which changes the reference settings of the FOFB. Users are permitted to change the XBPM references within certain limits while the feedback is running. A fast synchronous readout of the XBPMs allows their integration into the FOFB loop. The FOFB will be extended by an additional beam position monitor (BPM) in order to satisfy the requirements of the upcoming FEMTO project.