Title :
Beam lifetime at the SRS
Author_Institution :
CLRC Daresbury Lab., Warrington, UK
Abstract :
The beam lifetime in the SRS electron storage ring at Daresbury Laboratory is governed by several processes which vary significantly according to the machine operating mode. A theoretical model of the storage ring has been developed, taking the variable vacuum chamber aperture, dynamic aperture and other effects into account to predict the expected overall beam lifetime. Measurements have been performed to separate the contributions from the different loss processes: Touschek scattering, beam-gas scattering and quantum lifetime effects. Comparison with experiment gives a reasonable agreement with theory in the different operational modes used on the SRS
Keywords :
electron accelerators; particle beam dynamics; storage rings; SRS electron storage ring; Touschek scattering; beam-gas scattering; dynamic aperture; loss processes; machine operating mode; quantum lifetime effects; variable vacuum chamber aperture; Apertures; Compaction; Electron beams; Laboratories; Lattices; Particle scattering; Performance evaluation; Predictive models; Storage rings; Undulators;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.749633
