# Microbunched Electron Cooling with Amplification Cascades

## TL;DR

This paper analyzes and optimizes Microbunched Electron Cooling with amplification cascades, deriving formulas for gain and cooling rates, and confirming results through numerical simulations to improve collider beam quality.

## Contribution

It provides the first analytical derivation and optimization of gain factors and cooling rates for MBEC with amplification cascades, including noise effects.

## Key findings

- Optimized gain factor formulas for amplification sections.
- Derived cooling rates for systems with one and two cascades.
- Confirmed analytical results with numerical simulations.

## Abstract

The Microbunched Electron Cooling (MBEC) is a promising cooling technique that can find applications in future hadron and electron-ion colliders to counteract intrabeam scattering that limits the maximum achievable luminosity of the collider. To minimize the cooling time, one would use amplification cascades consisting of a drift section followed by a magnetic chicane. In this paper, we first derive and optimize the gain factor in an amplification section for a simplified one-dimensional model of the beam. We then deduce the cooling rate of a system with one and two amplification cascades. We also analyze the noise effects that counteract the cooling process through the energy diffusion in the hadron beam. Our analytical formulas are confirmed by numerical simulations for a set of model parameters.