Beam dynamics performances and applications of a low-energy electron-beam magnetic bunch compressor

TL;DR

This paper investigates the use of magnetic bunch compressors for low-energy, high-charge electron beams, analyzing their performance and potential applications in producing short, high-quality electron bunches.

Contribution

It presents a detailed study of magnetic compression techniques applied to low-energy electron beams with low emittance, highlighting their effectiveness and challenges.

Findings

Magnetic compression can effectively shorten low-energy electron bunches.

Space charge effects significantly influence compression performance.

Applications include improved electron beam quality for various accelerator experiments.

Abstract

Many front-end applications of electron linear accelerators rely on the production of temporally-compressed bunches. The shortening of electron bunches is often realized with magnetic bunch compressors located in high-energy sections of accelerators. Magnetic compression is subject to collective effects including space charge and self interaction via coherent synchrotron radiation. In this paper we explore the application of magnetic compression to low-energy ($\sim 40$ MeV), high-charge (nC) electron bunches with low normalized transverse emittances ($< 5$ $\mu$m).