On the Production of Flat Electron Bunches for Laser Wake Field Acceleration

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We suggest a novel method for injection of electrons into the acceleration phase of particle accelerators, producing low emittance beams appropriate even for the demanding high energy Linear Collider specifications. In this paper we work out the injection into the acceleration phase of the wake field in a plasma behind a high intensity laser pulse, taking advantage of the laser polarization and focusing. With the aid of catastrophe theory we categorize the injection dynamics. The scheme uses the structurally stable regime of transverse wake wave breaking, when electron trajectory self-intersection leads to the formation of a flat electron bunch. As ... continued below

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29 pages

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Kando, M.; Fukuda, Y.; Kotaki, H.; Koga, J.; Bulanov, S. V.; Tajima, T. et al. June 27, 2006.

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Description

We suggest a novel method for injection of electrons into the acceleration phase of particle accelerators, producing low emittance beams appropriate even for the demanding high energy Linear Collider specifications. In this paper we work out the injection into the acceleration phase of the wake field in a plasma behind a high intensity laser pulse, taking advantage of the laser polarization and focusing. With the aid of catastrophe theory we categorize the injection dynamics. The scheme uses the structurally stable regime of transverse wake wave breaking, when electron trajectory self-intersection leads to the formation of a flat electron bunch. As shown in three-dimensional particle-in-cell simulations of the interaction of a laser pulse in a line-focus with an underdense plasma, the electrons, injected via the transverse wake wave breaking and accelerated by the wake wave, perform betatron oscillations with different amplitudes and frequencies along the two transverse coordinates. The polarization and focusing geometry lead to a way to produce relativistic electron bunches with asymmetric emittance (flat beam). An approach for generating flat laser accelerated ion beams is briefly discussed.

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29 pages

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  • Report No.: SLAC-PUB-11929
  • Grant Number: AC02-76SF00515
  • DOI: 10.2172/885284 | External Link
  • Office of Scientific & Technical Information Report Number: 885284
  • Archival Resource Key: ark:/67531/metadc876899

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • June 27, 2006

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

Description Last Updated

  • July 26, 2017, 12:18 p.m.

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Kando, M.; Fukuda, Y.; Kotaki, H.; Koga, J.; Bulanov, S. V.; Tajima, T. et al. On the Production of Flat Electron Bunches for Laser Wake Field Acceleration, report, June 27, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc876899/: accessed May 27, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.