CERN Accelerating science

Article
Title	Correction of Insertion Device Induced Orbit Distortions at the SLS
Author(s)	Böge, Michael ; Chrin, Jan ; Ingold, Gerhard ; Keil, Boris ; Krempasky, Jurai ; Schilcher, Thomas ; Schlott, Volker ; Schmidt, Thomas ; Streun, Andreas
Affiliation	(PSI, Villigen)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1584
Subject category	Accelerators and Storage Rings
Abstract	Corrections of insertion device (ID) induced orbit distortions at the SLS are performed by means of feed forward schemes down to the micron level at the corresponding photon beam position monitors (XBPMs). The remaining orbit fluctuations are suppressed by XBPM feedbacks which are an integral part of the fast orbit feedback system. As a result, sub-um RMS stability at the XBPMs is achieved while the ID settings are varied.