Burst mode MHz repetition rate inverse free electron laser acceleration
Open Access
- 13 May 2020
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Accelerators and Beams
- Vol. 23 (5), 051301
- https://doi.org/10.1103/physrevaccelbeams.23.051301
Abstract
The capability of accelerating electron bunches at high repetition rate is one of the key performance criteria for all high average power particle accelerator applications. High gradient laser-driven acceleration holds the potential for greatly reducing size and costs of future machines, but typically requires very high peak laser powers. On the other hand, MHz pulse trains of TW-class laser beams are much beyond the state of the art, so that laser recycling and recirculation is a necessary step to bridge that gap. In this experiment we demonstrate for the first time an inverse free electron laser accelerator (IFEL) operating within an active optical cavity showing the ability to laser-accelerate electron bunch trains in burst mode at repetition rate. The experimental setup, synchronization challenges and acceleration results are presented. It is found that careful control of the dispersive properties of the cavity is required in order to sustain high accelerating gradients over many passes in the laser pulse train.
Keywords
Funding Information
- U.S. Department of Energy (DE-SC0013749, DE-SC0009914)
This publication has 24 references indexed in Scilit:
- Petawatt Laser Guiding and Electron Beam Acceleration to 8 GeV in a Laser-Heated Capillary Discharge WaveguidePhysical Review Letters, 2019
- High-field nonlinear optical response and phase control in a dielectric laser acceleratorCommunications Physics, 2018
- Segmented terahertz electron accelerator and manipulator (STEAM)Nature Photonics, 2018
- Demonstration of Cascaded Modulator-Chicane Microbunching of a Relativistic Electron BeamPhysical Review Letters, 2018
- Direct longitudinal laser acceleration of electrons in free spacePhysical Review Accelerators and Beams, 2016
- High-quality electron beams from a helical inverse free-electron laser acceleratorNature Communications, 2014
- Inverse free electron laser accelerator for advanced light sourcesPhysical Review Special Topics - Accelerators and Beams, 2012
- High-energy inverse free-electron-laser acceleratorPhysical Review A, 1985
- Free-electron lasers with variable parameter wigglersIEEE Journal of Quantum Electronics, 1981
- Interaction of Relativistic Particles and Free Electromagnetic Waves in the Presence of a Static Helical MagnetJournal of Applied Physics, 1972