1993•University of North Texas Digital Library (University of North Texas)Open access
Beam Lifetime Investigations at SRRC
C.C. Kuo, H. P. Chang, M.H. Wang, W.T. Weng
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Abstract
The beam lifetime of the 1.3 GeV storage ring TLS at SRRC was studied. The contributions of the gas scattering lifetime and Touschek scattering lifetime were measured. The effects of the insertion devices, RF energy acceptance, chromaticity setting, transverse emittance coupling strength, bunch length, bunch current, etc., on the beam lifetime were measured. It is observed that this machine is Touschek lifetime dominated provided that the transverse emittance coupling strength is low enough and bunch current is reasonably high. In the multibunch users mode it is required to have a longer lifetime, some possible actions to increase the beam lifetime have been proposed or implemented.