Title :
The positron accumulator ring for the APS
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
The Positron Accumulator Ring (PAR) is designed to accumulate and damp positrons from the 450-MeV linac during the 0.5-s cycle time of the injector synchrotron for the Advanced Photon Source (APS) 7-GeV storage ring. During 0.4 s of each synchrotron cycle, up to 24 linac pulses are injected into the horizontal phase space of the PAR at a 60-Hz rate. Each injected pulse occupies about one third of the circumference of the accumulator ring. After 0.1 s for longitudinal damping, the single accumulated bunch is transferred to one of the 353-MHz buckets of the injector synchrotron RF system. The bunch is accelerated to 7 GeV and transferred to the storage ring, while the PAR accumulates the next bunch of positrons
Keywords :
beam handling equipment; beam handling techniques; electron accelerators; storage rings; Advanced Photon Source; damp positrons; horizontal phase space; injected pulse; injector synchrotron RF system; linac; longitudinal damping; positron accumulator ring; single accumulated bunch; storage ring; synchrotron cycle; Acceleration; Damping; Laboratories; Lattices; Linear particle accelerator; Magnets; Positrons; Radio frequency; Storage rings; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.72901
