Measurement and Simulation of Space Charge Effects in a Multi-Beam Electron Bunch from an RF Photoinjector

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We report on a new experimental study of the space charge effect in a space-charge-dominated multi-beam electron bunch. A 5 MeV electron bunch, consisting of a variable number of beamlets separated transversely, was generated in a photoinjector and propagated in a drift space. The collective interaction of these beamlets was studied for different experimental conditions. The experiment allowed the exploration of space charge effects and its comparison with three-dimensional particle-in-cell simulations. Our observations also suggest the possible use of a multibeam configuration to tailor the transverse distribution of an electron beam.

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3 pages

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Rihaoui, M. M.; Piot, P.; Power, J. G.; Yusof, Z. & Gai, W. May 1, 2009.

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We report on a new experimental study of the space charge effect in a space-charge-dominated multi-beam electron bunch. A 5 MeV electron bunch, consisting of a variable number of beamlets separated transversely, was generated in a photoinjector and propagated in a drift space. The collective interaction of these beamlets was studied for different experimental conditions. The experiment allowed the exploration of space charge effects and its comparison with three-dimensional particle-in-cell simulations. Our observations also suggest the possible use of a multibeam configuration to tailor the transverse distribution of an electron beam.

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3 pages

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  • Report No.: FERMILAB-CONF-09-262-AD
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 958314
  • Archival Resource Key: ark:/67531/metadc926385

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  • May 1, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • July 25, 2017, 2:13 p.m.

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Thumbnail image of item number 1 in: 'Measurement and Simulation of Space Charge Effects in a Multi-Beam Electron Bunch from an RF Photoinjector'.
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Thumbnail image of item number 3 in: 'Measurement and Simulation of Space Charge Effects in a Multi-Beam Electron Bunch from an RF Photoinjector'.

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Rihaoui, M. M.; Piot, P.; Power, J. G.; Yusof, Z. & Gai, W. Measurement and Simulation of Space Charge Effects in a Multi-Beam Electron Bunch from an RF Photoinjector, article, May 1, 2009; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc926385/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.