Electron Self-Injection and Trapping into an Evolving Plasma Bubble

Journal Article · Fri Sep 25 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.135004· OSTI ID:21370702

Kalmykov, S; Yi, S A; Khudik, V; Shvets, G ^[1]

---

1. Department of Physics and Institute for Fusion Studies, University of Texas at Austin, One University Station C1500, Austin, Texas 78712 (United States)

The blowout (or bubble) regime of laser wakefield acceleration is promising for generating monochromatic high-energy electron beams out of low-density plasmas. It is shown analytically and by particle-in-cell simulations that self-injection of the background plasma electrons into the quasistatic plasma bubble can be caused by slow temporal expansion of the bubble. Sufficient criteria for the electron trapping and bubble's expansion rate are derived using a semianalytic nonstationary Hamiltonian theory. It is further shown that the combination of bubble's expansion and contraction results in monoenergetic electron beams.

• OSTI ID: 21370702
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 103; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
BEAM INJECTION
BEAMS
ELECTROMAGNETIC RADIATION
ELECTRON BEAM INJECTION
ELECTRON BEAMS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HAMILTONIANS
LASERS
LEPTON BEAMS
LEPTONS
MATHEMATICAL OPERATORS
MONOCHROMATIC RADIATION
PARTICLE BEAMS
PLASMA
PLASMA DENSITY
QUANTUM OPERATORS
RADIATIONS
SIMULATION
TRAPPING