Back to Search Start Over

Generation of 20 kA electron beam from a laser wakefield accelerator.

Authors :
Li, Y. F.
Li, D. Z.
Huang, K.
Tao, M. Z.
Li, M. H.
Zhao, J. R.
Ma, Y.
Guo, X.
Wang, J. G.
Chen, M.
Hafz, N.
Zhang, J.
Chen, L. M.
Source :
Physics of Plasmas; 2017, Vol. 24 Issue 2, p1-7, 7p, 1 Diagram, 5 Graphs
Publication Year :
2017

Abstract

(LWFA) with a charge of 620 pC and a maximum energy up to 0.6 GeV by irradiating 80 TW laser pulses at a 3 mm Helium gas jet. The charge of injected electrons is much larger than the normal scaling laws of LWFA in bubble regime. We also got a quasi-monoenergetic electron beam with energy peaked at 249 MeV and a charge of 68 pC with the similar laser conditions but lower plasma density. As confirmed by 2D particle-in-cell simulations, the boosted bunch charge is due to the continuous injection caused by the self-steepening and self-compression of a laser pulse. During the nonlinear evolution of the laser pulse, the bubble structure broadens and stretches, leading to a longer dephasing length and larger beam charge. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
1070664X
Volume :
24
Issue :
2
Database :
Complementary Index
Journal :
Physics of Plasmas
Publication Type :
Academic Journal
Accession number :
121543448
Full Text :
https://doi.org/10.1063/1.4975613