Experimental measurement of nonlinear plasma wake fields

Rosenzweig, James; Schoessow, P.; Cole, B.; Gai, W.; Konecny, R.; Norem, J.; Simpson, J.

doi:10.1103/physreva.39.1586

Cited by 71 publications

(37 citation statements)

References 10 publications

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“…[17] • Plasma Wakefield acceleration (PWFA): The plasma wave is formed by a relativistic electron or positron bunch. This beam should be terminated in times shorter than plasma period [18], [19].…”

Section: Introductionmentioning

confidence: 99%

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Efficient simulation of electron trapping in laser and plasma wakefield acceleration

2010

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EngineeringPlasma based laser Wakefield accelerators (LWFA) have been a subject of interest in the plasma community for many years. In LWFA schemes the laser pulse must propagate several centimeters and maintain its coherence over this distance, which corresponds to many Rayleigh lengths. These Wakefields and their effect on the laser can be simulated in the quasistatic approximation. The 2D, cylindrically symmetric, quasistatic simulation code, WAKE is an efficient tool for the modeling of short-pulse laser propagation in under dense plasmas [P. Mora & T.M. Antonsen Phys. Plasmas 4, 1997]. The quasistatic approximation, which assumes that the driver and its wakefields are undisturbed during the transit time of plasma electrons, through the pulse, cannot, however, treat electron trapping and beam loading.Here we modify WAKE to include the effects of electron trapping and beam loading by introducing a population of beam electrons. Background plasma electrons that are beginning to start their oscillation around the radial axis and have energy above some threshold are removed from the background plasma and promoted to "beam" electrons. The population of beam electrons which are no longer subject to the quasistatic approximation, are treated without approximation and provide their own electromagnetic field that acts upon the background plasma. The algorithm is benchmarked to OSIRIS (a standard particle in cell code) simulations which makes no quasistatic approximation. We also have done simulation and comparison of results for centimeter scale GeV electron accelerator experiments from LBNL. These modifications to WAKE provide a tool for simulating GeV laser or plasma wakefield acceleration on desktop computers.

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Section: Introductionmentioning

confidence: 99%

“…• Laser Wakefield acceleration (LWFA): The new generation of compact, ultra short pulse lasers (<1ps) ultra intense >10 18 [Wcm -2 ], is used to generate an electron plasma wave. A pulse with the duration on the order of plasma period is used [20]- [26].…”

Section: Introductionmentioning

confidence: 99%

Efficient simulation of electron trapping in laser and plasma wakefield acceleration

2010

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“…The investigations on the excitation of wakefield began with the pioneering work of Chen et al [19], and the first experimental evidence was reported by Rosenzweig and coworkers [20,21] followed by Nakajima et al [22]. The wakefield generation has been widely studied experimentally, analytically and using simulations [23 -29].…”

Section: Acceleration By Wakefieldmentioning

confidence: 99%

Electromagnetic Waves and Their Application to Charged Particle Acceleration

Malik¹

2013

Wave Propagation Theories and Applications

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“…These fields are then used to accelerate a low-current trailing beam. 2,3 We report here experimental measurements on high-current (kA level) relativistic electron beams whose transport is strongly influenced by the self-induced wakefields.…”

Section: Introductionmentioning

confidence: 99%