Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime
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Open Access
- 5 June 2007
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Special Topics - Accelerators and Beams
- Vol. 10 (6), 061301
- https://doi.org/10.1103/physrevstab.10.061301
Abstract
The extraordinary ability of space-charge waves in plasmas to accelerate charged particles at gradients that are orders of magnitude greater than in current accelerators has been well documented. We develop a phenomenological framework for laser wakefield acceleration (LWFA) in the 3D nonlinear regime, in which the plasma electrons are expelled by the radiation pressure of a short pulse laser, leading to nearly complete blowout. Our theory provides a recipe for designing a LWFA for given laser and plasma parameters and estimates the number and the energy of the accelerated electrons whether self-injected or externally injected. These formulas apply for self-guided as well as externally guided pulses (e.g. by plasma channels). We demonstrate our results by presenting a sample particle-in-cell (PIC) simulation of a , 200 TW laser interacting with a 0.75 cm long plasma with density to produce an ultrashort (10 fs) monoenergetic bunch of self-injected electrons at 1.5 GeV with 0.3 nC of charge. For future higher-energy accelerator applications, we propose a parameter space, which is distinct from that described by Gordienko and Pukhov [ Phys. Plasmas 12, 043109 (2005)] in that it involves lower plasma densities and wider spot sizes while keeping the intensity relatively constant. We find that this helps increase the output electron beam energy while keeping the efficiency high.
Keywords
This publication has 34 references indexed in Scilit:
- Energy doubling of 42 GeV electrons in a metre-scale plasma wakefield acceleratorNature, 2007
- Multi-GeV Energy Gain in a Plasma-Wakefield AcceleratorPhysical Review Letters, 2005
- Near-GeV-Energy Laser-Wakefield Acceleration of Self-Injected Electrons in a Centimeter-Scale Plasma ChannelPhysical Review Letters, 2004
- Monoenergetic beams of relativistic electrons from intense laser–plasma interactionsNature, 2004
- High-quality electron beams from a laser wakefield accelerator using plasma-channel guidingNature, 2004
- Laser wake field acceleration: the highly non-linear broken-wave regimeApplied Physics B Laser and Optics, 2002
- Acceleration and focusing of electrons in two-dimensional nonlinear plasma wake fieldsPhysical Review A, 1991
- Self-focusing of short intense pulses in plasmasPhysics of Fluids, 1987
- Acceleration of Electrons by the Interaction of a Bunched Electron Beam with a PlasmaPhysical Review Letters, 1985
- Laser Electron AcceleratorPhysical Review Letters, 1979