Title :
Beam lifetime studies for the SLS storage ring
Author :
Böge, M. ; Streun, A.
Author_Institution :
Paul Scherrer Inst., Villigen, Switzerland
Abstract :
SLS is a high brightness light source with 4.8 nm emittance at 2.4 GeV. Particle losses due to Touschek scattering will strongly affect the beam lifetime. We present Touschek lifetime calculations based on a refined tracking procedure for determination of the lattice momentum acceptance. The dependency of lifetime on the gap height of insertion devices and on the RF cavity voltage is studied in detail for the reference optics of the SLS storage ring lattice. Including gas scattering losses we expect 3.5 hrs of total lifetime for a 1 nCb bunch charge and 0.1% coupling. Installation of a 3rd harmonic cavity for bunch lengthening would increase the total lifetime to 8 hrs and thus is recommended
Keywords :
electron accelerators; particle beam bunching; particle beam dynamics; particle beam stability; storage rings; RF cavity voltage; SLS; Touschek lifetime; Touschek scattering; beam lifetime; bunch length; emittance; gap height; harmonic cavity; insertion devices; lattice momentum acceptance; particle losses; storage ring; Brightness; Laser sintering; Lattices; Light scattering; Light sources; Optical scattering; Particle beams; Particle scattering; Radio frequency; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792714
