Space charge compensation for intense ions beams in booster synchrotrons

TL;DR

This paper investigates the use of localized electron lenses distributed around booster synchrotrons to compensate for large space charge tune spreads at injection energy, aiming to mitigate intensity limitations.

Contribution

It introduces a method of using multiple electron lenses for transverse space charge compensation in booster synchrotrons, a novel approach for this application.

Findings

Electron lenses can effectively reduce space charge tune spreads.

Distributed electron lenses improve beam stability at high intensities.

The method offers a potential solution to intensity limitations in booster synchrotrons.

Abstract

For booster synchrotrons, like the SIS at GSI, space charge is one of the main intensity limitations. At injection energy the space charge induced tune spreads in booster synchrotrons are large, reaching up to 0.5 and the ramping times are typically short. We study the effect of several localized electron lenses distributed equally around the circumference in order to compensate for the transverse space charge force.