Thermal effects in plasma-based accelerators

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Finite plasma temperature can modify the structure of thewake field, reduce the wave-breaking field, and lead to self-trappedelectrons, which can degrade the electron bunch quality in a plasma-basedaccelerator. A relativistic warm fluid theory is used to describe theplasma temperature evolution and alterations to the structure of anonlinear periodic wave exited in a warm plasma. The trapping thresholdfor a plasma electron and the fraction of electrons trapped from athermal distribution are examined using a single-particle model.Numerical artifacts in particle-in-cell models that can mimic the physicsassociated with finite momentum spread are discussed.

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Esarey, E.; Schroeder, C.B.; Michel, E.; Shadwick, B.A.; Geddes,C.G.R. & Leemans, W.P. January 9, 2007.

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Finite plasma temperature can modify the structure of thewake field, reduce the wave-breaking field, and lead to self-trappedelectrons, which can degrade the electron bunch quality in a plasma-basedaccelerator. A relativistic warm fluid theory is used to describe theplasma temperature evolution and alterations to the structure of anonlinear periodic wave exited in a warm plasma. The trapping thresholdfor a plasma electron and the fraction of electrons trapped from athermal distribution are examined using a single-particle model.Numerical artifacts in particle-in-cell models that can mimic the physicsassociated with finite momentum spread are discussed.

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  • Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 5; Related Information: Journal Publication Date: 2007

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  • Report No.: LBNL--63071
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1063/1.2714022 | External Link
  • Office of Scientific & Technical Information Report Number: 927386
  • Archival Resource Key: ark:/67531/metadc896405

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  • January 9, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 4:06 p.m.

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Esarey, E.; Schroeder, C.B.; Michel, E.; Shadwick, B.A.; Geddes,C.G.R. & Leemans, W.P. Thermal effects in plasma-based accelerators, article, January 9, 2007; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc896405/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.