Abstract
This paper presents the Landau damping effects on the microwave instability of a coasting long bunch in an isochronous ring due to finite energy spread and emittance. Our two-dimensional (2D) dispersion relation gives more accurate predictions of the microwave instability growth rates of short-wavelength perturbations than the conventional 1D formula. The long-term evolution of energy spread is also studied by measurements and simulations.
Original language | English |
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Pages (from-to) | 674-687 |
Number of pages | 14 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 763 |
DOIs | |
State | Published - Nov 1 2014 |
Externally published | Yes |
Keywords
- 2D dispersion relation
- Energy spread
- Isochronous ring
- Landau damping
- Microwave instability
- Space charge field