Gas cell density characterization for laser wakefield acceleration
نویسندگان
چکیده
منابع مشابه
Self-modulated wakefield and forced laser wakefield acceleration of electrons
The interaction of intense laser pulses (power.30 TW) with underdense plasmas has been studied. In the regime where the pulse length is much longer than the plasma period (t l@2pvp ), the laser pulse is found to be self-modulated at the plasma frequency by the forward Raman scattering instability. Wavebreaking of the resulting plasma wave results in energetic electrons being accelerated to more...
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The energy gain in laser wakefield acceleration is ultimately limited by dephasing, occurring when accelerated electrons outrun the accelerating phase of the wakefield. We apply quasi-phase-matching, enabled by axially modulated plasma channels, to overcome this limitation. Theory and simulations are presented showing that weakly relativistic laser intensities can drive significant electron ene...
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An ultra-short (about 30 fs) petawatt laser pulse focused with a wide focal spot (about 100 μm) in a rarefied plasma (n0 ∼ 10 cm) excites a nonlinear plasma wakefield which can accelerate injected electrons up to the GeV energy without any pulse channelling. In these conditions, propagation of the laser pulse with an over-critical power for relativistic self-focusing is almost the same as in va...
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A new method of optical guiding for the laser wakefield acceleration using an imploding phase of a gas-filled fast capillary discharge has been proposed. An imploding plasma column has a concave electron density profile in the radial direction just before a stagnation phase driven by a converging current sheet and shock wave. The feasibility of optical guiding of high intensity laser pulses usi...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2018
ISSN: 0168-9002
DOI: 10.1016/j.nima.2018.01.053