Performance of capillary discharge guided laser plasma wakefieldaccelerator

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A GeV-class laser-driven plasma-based wakefield acceleratorhas been realized at the Lawrence Berkeley National Laboratory (LBNL).The device consists of the 40TW high repetition rate Ti:sapphire LOASISlaser system at LBNL and a gas-filled capillary discharge waveguidedeveloped at Oxford University. The operation of the capillary dischargeguided laser plasma wakefield accelerator with a capillaryof 225 mu mdiameter and 33 mm in length was analyzed in detail. The input intensitydependence suggests that excessive self-injection causes increased beamloading leading to broadband lower energy electron beam generation. Thetrigger versus laser arrival timing dependence suggests that the plasmachannel parameters can be tuned to reduce beam divergence.

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Nakamura, Kei; Esarey, Eric; Geddes, Cameron G.R.; Gonsalves,Anthony J.; Leemans, Wim P.; Panasenko, Dmitriy et al. June 25, 2007.

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A GeV-class laser-driven plasma-based wakefield acceleratorhas been realized at the Lawrence Berkeley National Laboratory (LBNL).The device consists of the 40TW high repetition rate Ti:sapphire LOASISlaser system at LBNL and a gas-filled capillary discharge waveguidedeveloped at Oxford University. The operation of the capillary dischargeguided laser plasma wakefield accelerator with a capillaryof 225 mu mdiameter and 33 mm in length was analyzed in detail. The input intensitydependence suggests that excessive self-injection causes increased beamloading leading to broadband lower energy electron beam generation. Thetrigger versus laser arrival timing dependence suggests that the plasmachannel parameters can be tuned to reduce beam divergence.

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  • 2007 Particle Accelerator Conference,Albuquerque, NM, June 25 - 29, 2007

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  • Report No.: LBNL--63270
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 927390
  • Archival Resource Key: ark:/67531/metadc896473

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  • June 25, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 4:12 p.m.

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Nakamura, Kei; Esarey, Eric; Geddes, Cameron G.R.; Gonsalves,Anthony J.; Leemans, Wim P.; Panasenko, Dmitriy et al. Performance of capillary discharge guided laser plasma wakefieldaccelerator, article, June 25, 2007; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc896473/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.