Transverse modes and instabilities of a bunched beam with space charge and resistive wall impedance

Transverse instability of a bunched beam is investigated with synchrotron oscillations, space charge tune shift, and resistive wall wakefield taken into account. A boxcar model is used for a general analysis, and truncated Gaussian distribution is invoked for details. The beam spectrum, instability...

Full description

Saved in:
Bibliographic Details
Published in:Physical review special topics. PRST-AB. Accelerators and beams 2012-05, Vol.15 (5), p.054403, Article 054403
Main Author: Balbekov, V.
Format: Article
Language:English
Subjects:
Chromaticity
Freight cars
Gaussian beams (optics)
Landau damping
Normal distribution
Oscillations
Space charge
Stability
Synchrotrons
Transverse electromagnetic modes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Transverse instability of a bunched beam is investigated with synchrotron oscillations, space charge tune shift, and resistive wall wakefield taken into account. A boxcar model is used for a general analysis, and truncated Gaussian distribution is invoked for details. The beam spectrum, instability growth rate, and effects of chromaticity are studied in a wide range of parameters, both with head-tail and collective bunch interactions included. Influence of internal bunch oscillations on the collective instabilities is investigated thoroughly. Landau damping caused by the space charge tune spread is discussed, and the instability thresholds of different modes of truncated Gaussian bunch are estimated.
ISSN:1098-4402
1098-4402
2469-9888
DOI:10.1103/PhysRevSTAB.15.054403