Electromagnetic instability in a quadrupole‐focusing accelerator

Electromagnetic instability in a quadrupole‐focusing accelerator

The addition of helical quadrupole focusing to a modified betatron configuration is shown to give rise to an electromagnetic instability under certain conditions. The instability arises from a three‐wave coupling between the helical field, a transverse mode on the beam, and a transverse‐electric wav...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Phys. Fluids; (United States) 1986-05, Vol.29 (5), p.1698-1703
Hauptverfasser: Hughes, Thomas P., Godfrey, Brendan B.
Format: Artikel
Sprache:eng
Schlagworte:
430200 - Particle Accelerators- Beam Dynamics, Field Calculations, & Ion Optics
ACCELERATORS
Applied sciences
BETATRONS
COMPUTERIZED SIMULATION
COUPLING
CYCLIC ACCELERATORS
DISPERSION RELATIONS
EQUATIONS
Exact sciences and technology
FOCUSING
HELICITY
INSTABILITY
MULTI-PHOTON PROCESSES
MULTIPOLES
Other techniques and industries
PARTICLE ACCELERATORS
PARTICLE PROPERTIES
PLASMA INSTABILITY
QUADRUPOLES
SIMULATION
THREE-DIMENSIONAL CALCULATIONS
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The addition of helical quadrupole focusing to a modified betatron configuration is shown to give rise to an electromagnetic instability under certain conditions. The instability arises from a three‐wave coupling between the helical field, a transverse mode on the beam, and a transverse‐electric waveguide mode. An analytic dispersion relation is derived. Several features of the instability are confirmed using three‐dimensional computer simulations.
ISSN:0031-9171
1070-6631
2163-4998
DOI:10.1063/1.865635