Physics – Plasma Physics
Scientific paper
2001-10-09
Phys.Rev. E65 (2002) 046504
Physics
Plasma Physics
20 pages, 12 figures. submitted to Phys. Rev. E; the one-dimensional version will appear in JETP Letters
Scientific paper
10.1103/PhysRevE.65.046504
A scheme of laser wakefield acceleration, when a relatively rare and long bunch of non-relativistic or weakly-relativistic electrons is initially in front of the laser pulse, is suggested and considered. The motion of test electrons is studied both in the one-dimensional case (1D wakefield) and in the three-dimensional laser wakefield excited in a plasma channel. It is shown that the bunch is trapped, effectively compressed both in longitudinal and transverse directions and accelerated to ultra-relativistic energies in the region of first accelerating maximum of the wakefield. The accelerated bunch has sizes much less than the plasma wavelength and relatively small energy spread.
Khachatryan Arsen G.
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