Measurement and Simulation of Space Charge Effects in a Multi-Beam Electron Bunch from an RF Photoinjector
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Description
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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Fermi National Accelerator Laboratory (FNAL), Batavia, IL
Place of Publication:
Batavia, Illinois
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Description
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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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 April 22, 2018),
University of North Texas Libraries, Digital Library, digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.