A high current injector for the Boeing Radiation Laboratory FEL experiment

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

OSTI ID:5270895

Adamski, J L; Gallagher, W J; Kennedy, R C; Yeremian, A D

A two-stage subharmonic injector has been designed and installed to accelerate 150 ampere micropulses with the Boeing 20 MeV, S-band linac. The accelerator will provide microbunches with interpulse time of 50 nanoseconds throughout the RF macropulse of 20 microseconds. The electron source is a 5 cm/sup 2/ triode electron gun which is gated to produce 5A, 3ns pulses. Two standing wave prebuncher cavities are used, the first at 119 MHz, the 24th subharmonic of the linac frequency, and the second at 476 MHz, the sixth subharmonic. A short tapered phase velocity traveling wave structure provides the final bunching. The solenoidal containment field is adjustable for optimization using injector profile diagnostics. Computer analysis of bunching and radial trajectories predict beams of 2.2 nanocouloumbs with radius of 0.2 cm and phase width of ..pi../2 of the fundamental at the entrance to the traveling wave section.

• Research Organization: Boeing Aerospace Co., Seattle, WA
• OSTI ID: 5270895
• 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
430302* -- Particle Accelerators-- Injection & Extraction Systems
ACCELERATORS
BEAM BUNCHERS
BEAM BUNCHING
BEAM DYNAMICS
BEAM INJECTION
BEAM PROFILES
BEAM PULSERS
COMPUTER CALCULATIONS
DESIGN
ELECTRON BEAM INJECTION
ELECTRON GUNS
ELECTRON SOURCES
ENERGY RANGE
LINEAR ACCELERATORS
MEV RANGE
MEV RANGE 10-100
PARTICLE SOURCES
PHASE VELOCITY
RADIATION SOURCES
RF SYSTEMS
STANDING WAVES
TRAJECTORIES
TRAVELLING WAVES
VELOCITY