Simulation of ionization effects for high-density positron drivers in future plasma wakefield experiments

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The plasma wakefield accelerator (PWFA) concept has been proposed as a potential energy doubler for present or future electron-positron colliders. Recent particle-in-cell (PIC) simulations have shown that the self-fields of the required electron beam driver can tunnel ionize neutral Li, leading to plasma wake dynamics differing significantly from that of a preionized plasma. It has also been shown, for the case of a preionized plasma, that the plasma wake of a positron driver differs strongly from that of an electron driver. We will present new PIC simulations, using the OOPIC code, showing the effects of tunneling ionization on the plasma … continued below

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Bruhwiler, D. L.; Dimitrov, D. A.; Cary, J. R.; Esarey, E. & Leemans, W. P. May 12, 2003.

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The plasma wakefield accelerator (PWFA) concept has been proposed as a potential energy doubler for present or future electron-positron colliders. Recent particle-in-cell (PIC) simulations have shown that the self-fields of the required electron beam driver can tunnel ionize neutral Li, leading to plasma wake dynamics differing significantly from that of a preionized plasma. It has also been shown, for the case of a preionized plasma, that the plasma wake of a positron driver differs strongly from that of an electron driver. We will present new PIC simulations, using the OOPIC code, showing the effects of tunneling ionization on the plasma wake generated by high-density positron drivers. The results will be compared to previous work on electron drivers with tunneling ionization and positron drivers without ionization. Parameters relevant to the energy doubler and the upcoming E-164x experiment at the Stanford Linear Accelerator Center will be considered.

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INIS; OSTI as DE00815533

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  • 2003 Particle Accelerator Conference, Portland, OR (US), 05/12/2003--05/16/2003

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  • Report No.: LBNL--53431
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 815533
  • Archival Resource Key: ark:/67531/metadc738930

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  • May 12, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • Aug. 20, 2020, 10:32 a.m.

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Bruhwiler, D. L.; Dimitrov, D. A.; Cary, J. R.; Esarey, E. & Leemans, W. P. Simulation of ionization effects for high-density positron drivers in future plasma wakefield experiments, article, May 12, 2003; Berkeley, California. (https://digital.library.unt.edu/ark:/67531/metadc738930/: accessed May 23, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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