High-brightness electron injectors: a review

Author

Sheffield, Richard L.

Author_Institution

Los Alamos Nat. Lab., NM, USA

fYear

1989

fDate

20-23 Mar 1989

Firstpage

1098

Abstract

The approaches now being explored for attaining intense, bright electron beams are described. The methods for producing bright electron beams include photocathode-based short-pulse injectors; DC electrostatic accelerator sources; long-pulse beams, which are then compressed in time using subharmonic bunching; combining first and third harmonics in an accelerator to attain the equivalent of high-gradient DC fields; and LaB ₆ RF guns. For several of the approaches, the temporal length of the electron pulse is decreased after acceleration to relativistic energies by impressing an energy spread on the electron bunch and using a nonisochronous beam-transport system to increase the peak current

Keywords

electron accelerators; electrostatic accelerators; ion sources; reviews; DC electrostatic accelerator sources; LaB₆ RF guns; electron pulse temporal length; first harmonics; high-brightness electron injectors; high-gradient DC fields; long-pulse beams; nonisochronous beam-transport system; peak current; photocathode-based short-pulse injectors; relativistic energies; subharmonic bunching; third harmonics; Acceleration; Brightness; Cathodes; Electron accelerators; Electron beams; Electron sources; Optical beams; Optical pulses; Particle beams; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/PAC.1989.73365

Filename

73365