Abstract:
The capabilities of femtosecond terawatt laser systems of not very high power level ($\sim$100 TW) have been analyzed for the sake of electron beam generation using laser wakefield acceleration method in relativistic laser plasmas. A self-consisted analysis of the optimal parameters of laser pulses and plasma was performed, allowing electron beam energies of the order of 0.5 GeV to be achieved. It was shown that laser pulses with duration of 40 fs from a 60-TW power system, allow electron acceleration in a plasma with a density of 1.9 $\cdot$ 10$^{18}$ cm$^{-3}$ to energies of $\sim$500 MeV over and acceleration length of about 1 cm. The calculations were compared with the results obtained in previous experiments employing laser systems of comparable power.
Keywords:laser wakefield acceleration, laser electron acceleration, terawatt lasers, compact accelerator.
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