An Electron Bunch Compressor Based on an FEL Interaction in the Far Infra Red

TL;DR

This paper proposes a novel electron bunch compressor utilizing FEL interaction with far infrared radiation, aiming to produce ultra-short electron bunches while maintaining phase space density.

Contribution

It introduces a new method for electron bunch compression based on FEL interaction in the far infrared, emphasizing phase space preservation.

Findings

Potential to produce electron bunches of a few tens of micrometers

Requires high-quality electron beams for effective compression

Maintains phase space density during compression

Abstract

In this note an electron bunch compressor is proposed based on FEL type interaction of the electron bunch with far infrared (FIR) radiation. This mechanism maintains phase space density and thus requires a high quality electron beam to produce bunches of the length of a few ten micrometer.