Radio-Frequency Beam Conditioner for Fast-Wave Free-Electron Generators of Coherent Radiation

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A method for conditioning electron beams is proposed, making use of the TM{sub 210} mode of microwave cavities, to reduce the axial velocity spread within the beam, in order to enhance gain in resonant electron beam devices, such as the free-electron laser (FEL). Effectively, a conditioner removes the restriction on beam emittance. The conditioner is analyzed using a simple model for beam transport and ideal RF cavities. Analysis of an FEL is employed to evaluate performance with reduced axial velocity spread. Examples of FELs are presented showing the distinct advantage of conditioning.

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Sessler, Andrew M.; Whittum, D.H. & Yu, L. July 1, 1991.

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A method for conditioning electron beams is proposed, making use of the TM{sub 210} mode of microwave cavities, to reduce the axial velocity spread within the beam, in order to enhance gain in resonant electron beam devices, such as the free-electron laser (FEL). Effectively, a conditioner removes the restriction on beam emittance. The conditioner is analyzed using a simple model for beam transport and ideal RF cavities. Analysis of an FEL is employed to evaluate performance with reduced axial velocity spread. Examples of FELs are presented showing the distinct advantage of conditioning.

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16

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  • Journal Name: Physical Review Letters

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  • Report No.: LBL-31006
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 937212
  • Archival Resource Key: ark:/67531/metadc894796

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  • July 1, 1991

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 11:50 a.m.

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Sessler, Andrew M.; Whittum, D.H. & Yu, L. Radio-Frequency Beam Conditioner for Fast-Wave Free-Electron Generators of Coherent Radiation, article, July 1, 1991; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc894796/: accessed May 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.