KEK fast cycling booster

Conference · Wed Jun 01 04:00:00 EDT 1977 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:7285617

Arakita, Y; Ebihara, K; Ezura, E

The KEK GeV Proton Synchrotron aims at an intensity as high as 10/sup 13/ protons/pulse. For instance, a combination of a 50 MeV linac and 8 to 10 GeV separated function type synchrotron with reasonable aperture planned in the early stage of designing gives the space charge limit of 1.8 x 10/sup 12/ protons/pulse. By inserting a 500 MeV booster synchrotron and replacing with a 20 MeV linac, the incoherent space charge limit of the main synchrotron is raised to 2.0 x 10/sup 13/ protons/pulse. The 500 MeV booster is a fast-cycling combined-function type AG synchrotron with a repetition rate of 20 Hz. The mean radius of the booster is 6 m, which corresponds to one ninth of the main ring. Nine beam pulses from the booster every two seconds are stacked into the main ring longitudinally. Synchronization between the rf accelerating systems of the booster and the main ring requires the transition energy of the booster as far as possible from the ejection energy of the booster. Several candidates for the lattice structure of the booster synchrotron were studied, and triplet lattice of FDFO was chosen from the view point of the high transition energy.

• Research Organization: National Lab. for High Energy Physics, Ibaraki, Japan
• OSTI ID: 7285617
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-24:3
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
ACCELERATORS
BEAM EXTRACTION
BEAM INJECTION
BEAM MONITORS
CYCLIC ACCELERATORS
DESIGN
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
KEK SYNCHROTRON
MAGNETIC FIELDS
MAGNETS
MEASURING INSTRUMENTS
PARTICLE BOOSTERS
RF SYSTEMS
SYNCHROTRONS
TUNING
VACUUM SYSTEMS