Spectral broadening and the sideband instability
Abstract
We present an analysis of the sideband instability including the transient regime, both analytically for deeply trapped electrons and numerically for nonbunched initial conditions. We show that both the standard "deeply trapped electrons" and "exponential regime" assumptions are most often irrelevant for describing realistic situations. We also compare the results of this low signal analysis to a biparametric numerical investigation on tapered and filtered systems. We show that tapering must in general be assisted by filtering to prevent spectral broadening. Moreover, spectral broadening is not related in a simple way to sideband inhibition, due to nonlinear mechanisms.
- Publication:
-
Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- July 1993
- DOI:
- 10.1016/0168-9002(93)90075-S
- Bibcode:
- 1993NIMPA.331..379C