Investigations of cumulative beam breakup in radio-frequency linacs

Conference · Mon Apr 01 04:00:00 EST 1991 · Proceedings of SPIE - The International Society for Optical Engineering

DOI:https://doi.org/10.1117/12.43530· OSTI ID:5550759

Bohn, Courtlandt L. ^[1]; Delayen, Jean R. ^[1]

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1. Argonne National Laboratory (ANL), Argonne, IL (United States)

An analytic model of cumulative beam breakup has been developed which is applicable to both low-velocity ion and high-energy electron linear accelerators. The model includes arbitrary velocity, acceleration, focusing, initial conditions, beam-cavity resonances, and variable cavity geometry and spacing along the accelerator. Both the steady-state and transient displacements of the beam bunches are calculated. As examples, the solution is applied to hypothetical high-current ion accelerators comprised of superconducting coaxial half-wave resonators. The steady-state transverse motion of particles comprising a longitudinal halo between bunches is also calculated, and effects of nonzero bunch length and arbitrary bunch shape are investigated. The role of focusing in controlling beam breakup is quantified for these cases.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE; U.S. Army Strategic Defense Command
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5550759
• Report Number(s): ANL/CP--73084; CONF-910123--30; ON: DE91013355
• Conference Information: Journal Name: Proceedings of SPIE - The International Society for Optical Engineering Journal Volume: 1407
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
ANALYTICAL SOLUTION
BEAM BUNCHING
BEAM DYNAMICS
CAVITY RESONATORS
DIFFERENTIAL EQUATIONS
ELECTRONIC EQUIPMENT
EQUATIONS
EQUATIONS OF MOTION
EQUIPMENT
FOURIER ANALYSIS
INSTABILITY
LINEAR ACCELERATORS
PARTIAL DIFFERENTIAL EQUATIONS
RESONATORS
SUPERCONDUCTING CAVITY RESONATORS
SUPERCONDUCTING DEVICES