Time and momentum exchange for production and collection of intense antiproton beams at Fermilab

Conference · Mon Aug 01 04:00:00 EDT 1983 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5529466

Griffin, J; MacLachlan, J; Ruggiero, A G; Takayama, K

Antiprotons for the Fermilab p/sup -/p colliding beam project are accumulated by rf stacking of successive 8 GeV antiproton batches in a storage ring using stochastic cooling to reduce both transverse and longitudinal emittance. The rate of accumulation is increased 15-fold by interchange of bunch length and momentum spread of the antiproton bunches in a special purpose debuncher ring. Tightly bunched antiprotons are produced at the target by 120 GeV protons from the Main Ring. From 2.5x10/sup 12/ protons every 2 seconds the debuncher receives 7x10/sup 7/ antiprotons within a momentum bite ..delta..p/p=3%. These antiprotons are injected into mismatched stationary rf buckets in the debuncher so that synchrotron oscillation produces bunch rotation. After 90/sup 0/ of rotation followed by adiabatic debunching, the narrow time spread has been converted into a momentum spread ..delta..p/p=.2%. The authors describe the rf technique used to shorten the bunches of the primary proton beam in the Main Ring and report test results. They also describe the complementary procedures to be used in the Debuncher and demonstrate the expected reduction of the momentum spread by particle tracking simulation.

• Research Organization: Fermilab, P.O. Box 500, Batavia, IL 60510
• OSTI ID: 5529466
• Report Number(s): CONF-830311-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-30:4
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200 -- Particle Accelerators-- Beam Dynamics
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430400* -- Particle Accelerators-- Storage Rings
ACCELERATORS
ANTINUCLEON BEAMS
ANTIPARTICLE BEAMS
ANTIPROTON BEAMS
BEAM BUNCHERS
BEAM BUNCHING
BEAM COOLING
BEAM DYNAMICS
BEAM EMITTANCE
BEAM SHAPING
BEAM STACKING
BEAMS
COLLIDING BEAMS
CYCLIC ACCELERATORS
ELECTRON COOLING
ENERGY RANGE
FERMILAB ACCELERATOR
GEV RANGE
GEV RANGE 01-10
NUCLEON BEAMS
OSCILLATIONS
PARTICLE BEAMS
PROTON BEAMS
RF SYSTEMS
SIMULATION
STORAGE RINGS
SYNCHROTRON OSCILLATIONS
SYNCHROTRONS
TEVATRON