A positron accumulator ring for APS | Zendy

E. Crosbie | Zendy

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A positron accumulator ring for APS

Author(s) -

E. Crosbie

Publication year - 1988

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/90005

Subject(s) - synchrotron , injector , accumulator (cryptography) , storage ring , physics , linear particle accelerator , positron , nuclear physics , particle accelerator , atomic physics , optics , electron , beam (structure) , computer science , algorithm , thermodynamics

The new positron injection scheme is as follows. The cycle rate of the injector synchrotron is increased to 2 Hz. During 0.4 sec of each 0.5-sec synchrotron cycle, 24 linac pulses are injected into the horizontal phase space of the PAR at a 60-Hz rate. Each injected pulse occupies about 1/3 of the circumference of the accumulator ring. After 0.1 sec for longitudinal damping, the single accumulated bunch is transferred into one of the 352.96-MHz buckets of the injector synchrotron RF system. This single bunch is accelerated to 7 GeV and transferred into the storage ring while the PAR accumulates the next bunch of positrons. The injector synchrotron requires only the one high-frequency RF system

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