The new AGS H/sup /minus// RFQ preinjector

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7000609

Alessi, J G; Brennan, J M; Brodowski, J; Brown, H N; Gough, R; Kponou, A; Prelec, K; Staples, J; Witkover, R

The AGS will soon be replacing the 750 keV Cockcroft-Walton (C-W) preinjector for the 200 MeV linac by an RFQ preaccelerator. The motivation for this is improved reliability, simpler maintenance, and the convenience of having the source at ground potential. In addition, the fact that there will now be a 35 keV transport section between the source and the RFQ allows us to install a fast chopper at low energy, which will be used for better longitudinal matching of the linac beam to the AGS acceptance (''painting''). At the same time, the upgrade includes improving the instrumentation and controls for the entire low energy beam transport (LEBT) section of the linac. The RFQ, accelerating the H/sup /minus// beam from 35 keV to 753 keV, was designed and built at Lawrence Berkeley Laboratory. All components are designed to operate at 10 Hz repetition rate, 500 ..mu..S pulse width, although to date tests have been done at the present linac rep-rate of 5 Hz. In the following paper, the source, RFQ, 35 and 753 keV transport lines, beam choppers, and instrumentation will be described, and the performance given. The complete beamline is now operating in a test area, and will be installed in the preinjector area this summer. 6 refs., 6 figs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7000609
• Report Number(s): BNL-41376; CONF-880695-28; ON: DE88013785
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCELERATORS
ANIONS
BEAM BUNCHERS
BEAM EMITTANCE
BROOKHAVEN AGS
CHARGED PARTICLES
CYCLIC ACCELERATORS
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
ION SOURCES
IONS
MAGNETRONS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
MODIFICATIONS
PERFORMANCE
SYNCHROTRONS
TRANSPORT THEORY