Pulsed beam chopper for the PSR at LAMPF

Conference · Sat Jan 01 04:00:00 EST 1983

DOI:https://doi.org/10.1109/TNS.1983.4332969· OSTI ID:6306093

Lunsford, J S; Hardekopf, R A

A traveling-wave beam chopper has been designed to provide properly structured negative-ion beam to the Proton Storage Ring (PSR) and other LAMPF users. The chopper must provide a 20-mrad kick with pulse rise time <5 ns for the 750-keV H/sup -/ ions in the injector transpoft line. Variable pulse lengths from 15 ns to 750 ..mu..s at repetition rates up to 16.7 MHz must be generated in synchronization with the PSR circulation frequency. Parameter studies led to an optimized design combining good deflection efficiency and bandwidth with minimum deleterious effects from plate-to-plate coupling. Both positive and negative 600-V pulses, with lengths up to 1 ms and maximum 10% duty factor, can be generated to drive the deflectors.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6306093
• Report Number(s): LA-UR-83-720; CONF-830311-75; ON: DE83009963
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430302* -- Particle Accelerators-- Injection &amp; Extraction Systems
430400 -- Particle Accelerators-- Storage Rings
BEAM INJECTION
BEAM PULSERS
BEAM TRANSPORT
BEAMS
ENERGY RANGE
HYDROGEN 1 MINUS BEAMS
ION BEAMS
KEV RANGE
KEV RANGE 100-1000
LASL
NATIONAL ORGANIZATIONS
STORAGE RINGS
SYNCHRONIZATION
US AEC
US DOE
US ERDA
US ORGANIZATIONS