Work

Fluctuations Do Matter: Large Noise-Enhanced Halos in Charged-Particle Beams

Year: 2003

Type: article

Abstract: The formation of beam halos has customarily been described in terms of a particle-core model in which the space-charge field of the oscillating core drives particles to large amplitudes. This model involves parametric resonance and predicts a hard upper bound to the orbital amplitude of the halo particles. We show that the presence of colored noise due to space-charge fluctuations and/or machine imperfections can eject particles to much larger amplitudes than would be inferred from parametric resonance alone.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.91.264801

Authors: Courtlandt L. Bohn, Ioannis V. Sideris

Institutions: Northern Illinois University, Fermi National Accelerator Laboratory

Language: English

Topic: Particle accelerators and beam dynamics

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2018965429

FWCI: 8.661

Cites: 17

Cited by: 29

Related to: 10