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Beam quality improvement of ionization injected electrons by using chirped pulse in wakefield acceleration
- Source :
- Plasma Physics and Controlled Fusion. 61:085023
- Publication Year :
- 2019
- Publisher :
- IOP Publishing, 2019.
-
Abstract
- Ionization-induced electron injection in a chirped laser pulse driven wakefield acceleration is investigated through particle-in-cell simulations. We find that negative (positive) chirp can longitudinally stretch (compress) laser pulse, and the wakefield amplitude can be enhanced regardless of the chirp sign. On the other hand, the rapid compression of a positively chirped pulse leads to the decrease of the wakefield potential difference, which breaks the ionization injection condition and consequent injection truncation occurs. The effective injection only lasts for a few hundred micrometers and the detailed injection length is determined by the chirp parameter. As a result, a highly tunable quasi-monoenergetic electron beam with narrow energy spread, hundreds of MeV central energy and tens of pC charge can be stably produced by this scheme.
- Subjects :
- Physics
business.industry
Physics::Optics
Electron
Condensed Matter Physics
Laser
01 natural sciences
010305 fluids & plasmas
law.invention
Pulse (physics)
Acceleration
Optics
Nuclear Energy and Engineering
law
Ionization
0103 physical sciences
Physics::Atomic and Molecular Clusters
Cathode ray
Chirp
Physics::Accelerator Physics
Physics::Atomic Physics
Laser beam quality
010306 general physics
business
Subjects
Details
- ISSN :
- 13616587 and 07413335
- Volume :
- 61
- Database :
- OpenAIRE
- Journal :
- Plasma Physics and Controlled Fusion
- Accession number :
- edsair.doi...........846fa2b047ff63fd7b56702c163ec799