Los Alamos high-current proton storage ring: a status report

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5526324

Lawrence, G P; Hardekopf, R A; Jason, A J; Clout, P N; Sawyer, G A

The Proton Storage Ring (PSR), whose installation was recently completed at Los Alamos, is a fast-cycling high-current accumulator designed to produce intense 800 MeV proton pulses for driving a spallation neutron source. The ring converts long beam pulses from the LAMPF linear accelerator into short bunches well matched to requirements of a high-resolution neutron-scattering materials science program. The initial performance goal for this program is to provide 100-..mu..A average current at the neutron production target within a 12-Hz pulse rate. Project construction began in May 1982, and was completed in mid-April 1985. First beam was circulated in the ring on April 26. Operation at 20 ..mu..A is scheduled for September 1985, with full intensity within the next year. The storage ring was originally designed to function in a second mode in which six 1-ns bunches are accumulated and separately extracted every LAMPF macropulse. Implementation of this mode, which would serve a fast-neutron nuclear-physics program, has been deferred in favor of initial concentration on the neutron-scattering program. This paper summarizes the PSR design and status. Unique machine features include high peak current, two-step charge-stripping injection, a low-impedance buncher amplifier to counter beam-loading, and a high-repetition-rate strip-line extraction kicker. 19 refs., 31 figs., 3 tabs.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5526324
• Report Number(s): LA-UR-85-1613; CONF-850504-51; ON: DE85012664
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430400* -- Particle Accelerators-- Storage Rings
ACCELERATOR FACILITIES
ACCELERATORS
BEAM BUNCHERS
BEAM EXTRACTION
BEAMS
LAMPF LINAC
LINEAR ACCELERATORS
MESON FACTORIES
NEUTRON SOURCES
NUCLEAR REACTIONS
NUCLEON BEAMS
PARTICLE BEAMS
PARTICLE SOURCES
PERFORMANCE TESTING
PROTON BEAMS
RADIATION SOURCES
SHIELDING
SPALLATION
SPECIFICATIONS
STORAGE RINGS
TESTING