Laser triggered injection of electrons in a laser wakefield accelerator with the colliding pulse method

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An injection scheme for a laser wakefield accelerator that employs a counter propagating laser (colliding with the drive laser pulse, used to generate a plasma wake) is discussed. The threshold laser intensity for electron injection into the wakefield was analyzed using a heuristic model based on phase-space island overlap. Analysis shows that the injection can be performed using modest counter propagating laser intensity a{sub 1} < 0.5 for a drive laser intensity of a{sub 0} = 1.0. Preliminary experiments were preformed using a drive beam and colliding beam. Charge enhancement by the colliding pulse was observed. Increasing the signal-to-noise ratio ... continued below

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Nakamura, K.; Fubiani, G.; Geddes, C.G.R.; Michel, P.; van Tilborg, J.; Toth, C. et al. October 22, 2004.

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An injection scheme for a laser wakefield accelerator that employs a counter propagating laser (colliding with the drive laser pulse, used to generate a plasma wake) is discussed. The threshold laser intensity for electron injection into the wakefield was analyzed using a heuristic model based on phase-space island overlap. Analysis shows that the injection can be performed using modest counter propagating laser intensity a{sub 1} < 0.5 for a drive laser intensity of a{sub 0} = 1.0. Preliminary experiments were preformed using a drive beam and colliding beam. Charge enhancement by the colliding pulse was observed. Increasing the signal-to-noise ratio by means of a preformed plasma channel is discussed.

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INIS; OSTI as DE00838072

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  • The 11th Advanced Accelerator Concepts Workshop 2004, Stony Brook, NY (US), 06/21/2004--06/26/2004

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  • Report No.: LBNL--56575
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 838072
  • Archival Resource Key: ark:/67531/metadc785330

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  • October 22, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • April 4, 2016, 1:27 p.m.

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Nakamura, K.; Fubiani, G.; Geddes, C.G.R.; Michel, P.; van Tilborg, J.; Toth, C. et al. Laser triggered injection of electrons in a laser wakefield accelerator with the colliding pulse method, article, October 22, 2004; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc785330/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.