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Additional acceleration and collimation of relativistic electron beams by magnetic field resonance at very high intensity laser interaction | | Hong Liu
; X. T. He
; Heinrich Hora
; | | Date: |
19 Nov 2004 | | Subject: | Plasma Physics | physics.plasm-ph | | Abstract: | In addition to the ponderomotive acceleration of highly relativistic electrons at interaction of very short and very intense laser pulses, a further acceleration is derived from the interaction of these electron beams with the spontaneous magnetic fields of about 100 MG. This additional acceleration is the result of a laser-magnetic resonance acceleration (LMRA)[1] around the peak of the azimuthal magnetic field. This causes the electrons to gain energy within a laser period. Using a Gaussian laser pulse, the LMRA acceleration of the electrons depends on the laser polarization. Since this is in the resonance regime, the strong magnetic fields affect the electron acceleration considerably. The mechanism results in good collimated high energetic electrons propagating along the center axis of the laser beam as has been observed by experiments and is reproduced by our numerical simulations. | | Source: | arXiv, physics/0411184 | | Services: | Forum | Review | PDF | Favorites | |
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