@article{oai:repo.qst.go.jp:00048030,
 author = {Y.F.Li and D.Z.Li and ホァン, カイ and M.Z.Tao and M.H.Li and J.R.Zhao and Y.Ma and X.Guo and J.G.Wang and M.Chen and N.Hafz and J.Zhang and L.M.Chen and 黄 開},
 issue = {2},
 journal = {Physics of Plasmas},
 month = {Feb},
 note = {We present the experimentally generated electron bunch from laser-wakefield
acceleration (LWFA) with charge of 620 pC and maximum energy up to 0.6 GeV by
irradiating 80 TW laser pulses at 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-mononeregetic electron beam with energy peaked at 249 MeV and
charge of 68 pC with the similar laser conditions but lower plasma density. As
confirmed by 2D particle-in-cell (PIC) simulations, the boosted bunch charge is due
to the continuous injection caused by the self-steepening and self-compression of
laser pulse. During the nonlinear evolution of laser pulse, the bubble structure
broadens and stretches, leading to a longer dephasing length and larger beam charge.},
 pages = {023108-1--023108-7},
 title = {Generation of 20 kA electron beam from a laser wakefield accelerator},
 volume = {24},
 year = {2017}
}