Design of a wiggler-focused, sheet beam X band klystron

Conference · Sun Feb 01 04:00:00 EST 1987

OSTI ID:6223669

Eppley, K R; Herrmannsfeldt, W B; Miller, R H

An X band klystron using a sheet beam and wiggler focusing was simulated using the 2 + 1/2 dimensional particle in cell code MASK. Simulation of the rf cavities was by means of the port approximation used in modelling of standard klystrons. The wigglers, which would need permanent magnets to achieve the required field strengths, were modelled using an idealized analytic expression with an exponential rise and a linear taper superimposed on a sinusoidal variation. Cavity locations and tunings were varied for maximum output power. Beam voltage and current were also varied to explore the effect on efficiency. Both an idealized laminar beam and a more realistic beam from a gun design code were studied. For a voltage of 200 kV and current of 20 amp per linear cm efficiencies of approximately 50% were calculated.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6223669
• Report Number(s): SLAC-PUB-4221; CONF-870302-169; ON: DE87009453
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200 -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
430300* -- Particle Accelerators-- Auxiliaries & Components
CAVITY RESONATORS
COMPUTER CODES
COMPUTERIZED SIMULATION
DESIGN
EFFICIENCY
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
FOCUSING
KLYSTRONS
M CODES
MAGNETS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
RESONATORS
RF SYSTEMS
SIMULATION
WIGGLER MAGNETS