Investigations of cumulative beam breakup in radio-frequency linacs

Courtlandt L. Bohn; Jean R. Delayen

doi:10.1117/12.43530

1 April 1991 Investigations of cumulative beam breakup in radio-frequency linacs

Courtlandt L. Bohn, Jean R. Delayen

Proceedings Volume 1407, Intense Microwave and Particle Beams II; (1991) https://doi.org/10.1117/12.43530
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

1407_60 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.

Citation Download Citation

Courtlandt L. Bohn and Jean R. Delayen "Investigations of cumulative beam breakup in radio-frequency linacs", Proc. SPIE 1407, Intense Microwave and Particle Beams II, (1 April 1991); https://doi.org/10.1117/12.43530

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