Multistage ion acceleration in finite overdense target with a relativistic laser pulse

“Multistage ion acceleration” has been analytically and computationally studied in the relativistic regime. For non-relativistic piston velocities, this phenomenon has been described before. But, as we go to relativistic piston velocities, the non-relativistic results hold no more. We have presented...

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Bibliographic Details
Published in:Physics of plasmas 2013-07, Vol.20 (7), p.73116
Main Author: Sinha, Ujjwal
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
L CODES
LASERS
PLASMA ACCELERATION
PLASMA SIMULATION
PULSES
RELATIVISTIC PLASMA
THREE-DIMENSIONAL CALCULATIONS
VELOCITY
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Summary:“Multistage ion acceleration” has been analytically and computationally studied in the relativistic regime. For non-relativistic piston velocities, this phenomenon has been described before. But, as we go to relativistic piston velocities, the non-relativistic results hold no more. We have presented a fully relativistic calculation for second stage ion velocities and energies. To verify our calculations, we performed a fully relativistic 1D3V particle in cell simulations using the code LPIC++. It has been found that the relativistic calculations matched very well with the simulation results. Also, it has been seen that at relativistic piston velocities, the non-relativistic results differed by a significant margin. The feasibility of this process has been further established by three dimensional particle in cell simulations.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4817026