Timing and rf synchronization for filling PEP/SPEAR with the SLC Damping Rings

Conference · Wed Mar 01 04:00:00 EST 1989

OSTI ID:6250947

Ronan, M T; Lambert, D J; Lee, K L; Bernstein, D R; Corredoura, P; Jobe, R K; Ross, M C; Roster, B; Vancraeynest, J; Zapalac, G

An innovative timing and rf synchronization system has been built and commissioned which allows the direct injection of 1 mm sigma/sub z/ e/sup +/ or e/sup /minus// bunches from the SLC Damping Rings (..nu../sub rf/ = 714 MHz) into the storage rings PEP (..nu../sub rf/ = 353 MHz) and SPEAR (..nu../sub rf/ = 358 MHz). The required relative stability of these oscillators is 10/sup /minus/9/ since the beams may be stored in each damping ring (DR) for up to 0.2 sec., during which no timing correction is made, and must be delivered within a 0.5 nsec window. This stability has been obtained by phase-locking the storage ring rf to the LINAC-DR master oscillator. In order to obtain bunched beams for acceleration in the LINAC 10.5 cm rf structure while maintaining the storage ring timing requirements, the Subharmonic Buncher and Damping Ring rf are phase-shifted using GaAs digital circuitry. This paper describes the phase-locked loops, the rf distribution system, the S-band resettable dividers and the interpulse timing system components used in this project. 4 refs., 4 figs., 1 tab.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6250947
• Report Number(s): SLAC-PUB-4906; LBL-26809; CONF-890335-162; ON: DE89012277
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200 -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
430400* -- Particle Accelerators-- Storage Rings
ACCELERATOR FACILITIES
ACCELERATORS
BEAM BUNCHING
BEAM DYNAMICS
DAMPING
DESIGN
ELECTRONIC CIRCUITS
LANDAU DAMPING
LINEAR ACCELERATORS
RF SYSTEMS
STANFORD LINEAR COLLIDER
STORAGE RINGS
SYNCHRONIZATION
TIMING CIRCUITS