Demonstration of stable long-term operation of a kilohertz laser-plasma accelerator

Abstract

We report on the stable and continuous operation of a kilohertz laser-plasma accelerator. Electron bunches with 2.6 pC charge and 2.5 MeV peak energy were generated via injection and trapping in a downward plasma density ramp. This density transition was produced in a newly designed asymmetrically shocked gas nozzle. The reproducibility of the electron source was also assessed over a period of a week and found to be satisfactory with similar values of the beam charge and energy. These results show that the reproducibility and stability of the laser-plasma accelerator are greatly enhanced on the long-term scale when using a robust scheme for density gradient injection.

References in corpus (1)

• All-optical Compton gamma-ray source

Cited by in corpus (4)

• Optimization and stabilization of a kilohertz laser-plasma accelerator
• Stability of ionisation-injection-based laser-plasma accelerators
• Dosimetric characterisation and application to radiation biology of a kHz laser-driven electron beam
• GeV-scale accelerators driven by plasma-modulated pulses from kilohertz lasers