Bulletin of the American Physical Society
2006 48th Annual Meeting of the Division of Plasma Physics
Monday–Friday, October 30–November 3 2006; Philadelphia, Pennsylvania
Session CP1: Poster Session II: Reversed Field Pinch; Field Reversed Configuration and Spheromak; Waves and Instabilities; Beams and Coherent Radiation
Monday, October 30, 2006
Philadelphia Marriott Downtown Room: Franklin Hall AB, 2:00pm-5:00pm
Abstract ID: BAPS.2006.DPP.CP1.124
Abstract: CP1.00124 : Plasma channels for electron accelerators*
Preview Abstract Abstract
(GoLP - Centro de Fisica dos Plasmas, Instituto Superior Tecnico , Lisboa, Portugal)
The pre-formation of full ionized plasma waveguides in low Z gases may increase the energy gain and improve the electron bunch properties of plasma accelerators by extending the length of the high intensity interaction. High-voltage capacitive discharges can be used to produce and heat a plasma line. The discharges can be made through a dielectric capillary tube in order produce a straight plasma waveguide. On the other hand, the initial plasma line produced by the discharge can be on an open geometry (free space between electrodes) if we use a fast rise-time high-voltage pulse and use a laser pulse with enough intensity to trigger the discharge by optical-field-ionization. In this work we present the first results of a new scheme to produce plasma wave-guides for electron accelerators. It uses high-voltage discharge through a sequence of thin plates allowing the radial expansion of the plasma. This scheme can be used in a broad range of pressures and introduces a reduced amount of gas in the laser focusing region.
*FCT-Portugal grants POCTI50238/2003 and POCI58776/2004.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2006.DPP.CP1.124
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