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SLAC-PUB-11203
Single-Bunch Instability Driven by the Electron Cloud Effect in the Positron Damping Ring of the International Linear Collider

Abstract

Collective instabilities caused by the formation of an electron cloud are a potential limitation to the performances of the damping rings for a future linear collider. Present designs specify a circumference of 17 km, and there are efforts being made to reduce this significantly. However, a reduction in circumference will increase the average current, which could make electron cloud effects more severe. In this paper, we present recent simulation results for the electron cloud build-up in damping rings of different circumferences, and discuss the single-bunch instabilities driven by the electron cloud.

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