Stabilization of the arrival time of a relativistic electron beam to the 50 fs level

TL;DR

This paper presents a low-latency phase feed-forward system that stabilizes the arrival time of a relativistic electron beam to about 50 femtoseconds at CERN's CLIC Test Facility, meeting stringent timing requirements.

Contribution

The paper introduces a novel low-latency stabilization system achieving 50 fs timing precision for relativistic electron beams at high correction bandwidth.

Findings

Achieved 50 fs stabilization of beam arrival time

System latency was 350 ns with >23 MHz correction bandwidth

System successfully met CLIC requirements

Abstract

We report the results of a low-latency beam phase feed-forward system built to stabilize the arrival time of a relativistic electron beam. The system was operated at the Compact Linear Collider (CLIC) Test Facility (CTF3) at CERN where the beam arrival time was stabilized to approximately 50 fs. The system latency was 350 ns and the correction bandwidth >23 MHz. The system meets the requirements for CLIC.