Differential pumping for kHz operation of a Laser Wakefield accelerator based on a continuously flowing Hydrogen gas jet
Abstrak
Laser-Wakefield Accelerators (LWFA) running at kHz repetition rates hold great potential for applications. They typically operate with low-energy, highly compressed laser pulses focused in high-pressure gas targets. Experiments have shown that the best-quality electron beams are achieved using Hydrogen gas targets. However, continuous operation with Hydrogen requires a dedicated pumping system. In this work, we present a method for designing a differential pumping system, which we successfully implemented in our experiments. This enabled the first demonstration of continuous operation of a kHz LWFA using a high-pressure Hydrogen gas jet. The system effectively maintained a pressure below 3e-4 mbar, even with a free-flowing gas jet operating at 140 bar backing pressure. Numerical fluid dynamics and optical simulations were used to guide and validate the system's design.
Topik & Kata Kunci
Penulis (16)
Joséphine Monzac
Slava Smartsev
Julius Huijts
Lucas Rovige
Igor A. Andriyash
Aline Vernier
Vidmantas Tomkus
Valdas Girdauskas
Gediminas Raciukaitis
Miglė Mackevičiūtė
Valdemar Stankevic
Antoine Cavagna
Jaismeen Kaur
André Kalouguine
Rodrigo Lopez-Martens
Jérôme Faure
Akses Cepat
- Tahun Terbit
- 2024
- Bahasa
- en
- Sumber Database
- arXiv
- Akses
- Open Access ✓