Beam Breakup Mitigation by Ion Mobility in Plasma Acceleration

TL;DR

This paper investigates how ion mobility in plasma wakefield acceleration can damp transverse instabilities, potentially improving the stability of the trailing bunch in plasma accelerators.

Contribution

It introduces the concept of using ion mobility as a damping mechanism for transverse instabilities in plasma wakefield acceleration.

Findings

Ion mobility provides effective damping of transverse instabilities.

Estimated effects are significant for FACET-II parameters.

Ion mobility can improve beam stability in plasma accelerators.

Abstract

Moderate ion mobility provides a source of damping in the plasma wakefield acceleration, which may serve as an effective remedy against the transverse instability of the trailing bunch. Ion mobility in the fields of the driving and trailing bunches is taken into account; the related effects are estimated for the FACET-II parameters.