Space Charge Effects

TL;DR

This paper discusses the impact of space charge forces on beam dynamics in accelerators, including phenomena like energy loss and instabilities, with a focus on high-energy storage rings and low-energy linacs.

Contribution

It provides a comprehensive overview of space charge effects in different accelerator environments, highlighting their influence on beam stability and performance.

Findings

Space charge forces cause energy loss and frequency shifts.

They induce beam instabilities and affect beam quality.

The paper compares effects in high-energy rings and low-energy linacs.

Abstract

The space charge forces are those generated directly by the charge distribution, with the inclusion of the image charges and currents due to the interaction of the beam with a perfectly conducting smooth pipe. Space charge forces are responsible for several unwanted phenomena related to beam dynamics, such as energy loss, shift of the synchronous phase and frequency, shift of the betatron frequencies, and instabilities. We will discuss in this lecture the main feature of space charge effects in high-energy storage rings as well as in low-energy linacs and transport lines.