Circular Modes for Mitigating Space-Charge effects and enabling Flat Beams

TL;DR

This paper demonstrates that circular mode beam optics can effectively control space charge effects at low energies and facilitate the transformation into flat beams at higher energies, improving beam quality in accelerators.

Contribution

It introduces the use of circular mode beam optics as a novel method to mitigate space charge effects and enable flat beam production at higher energies.

Findings

Circular mode beams better control space charge effects at low energies.

Circular mode beams can be transformed into flat beams at higher energies.

The approach enhances beam brightness and luminosity in accelerators.

Abstract

Flat beams are preferred in high-intensity accelerators and high-energy colliders due to one of the transverse plane emittances being much smaller than the other, which enhances luminosity and beam brightness. However, flat beams are not desirable at low energies due to space charge forces which are significantly enhanced in one plane. The same is true, although to a lesser degree, for non-symmetric elliptical beams. To mitigate this effect and enable flat beams at higher energies, circular mode beam optics can be used. In this paper, we show that circular mode beams offer better control of space charge effects at lower energies and can be transformed into flat beams at higher energies.