Low-voltage, megawatt free-electron lasers at a frequency near 300 GHz

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Title: Low-voltage, megawatt free-electron lasers at a frequency near 300 GHz
Author: Booske, J.; Granatstein, V.; Antonsen, T. Jr; Destler, William; Levush, B.; Mayergoyz, I.; Radack, D.; Rodgers, J.; Rosenbury, E.; Segalov, Z.; Serbeto, A.
Abstract: Design procedures and beam transport feasibility experiments Il.re discussed for a novel, millimeter-wave free electron laser (FEL) concept employing short period magnetic undulators and a sheet electron beam. The advantages of this concept include: (1) lower beam voltage (-500 kV) compatible with thermionic Pierce gun technology and conventional power supplies (rather than electron accelerators), (?) a sheet electron beam geometry which enables high power operation without excessively high gun perveance, and (3) a streaming electron beam which is compatible with depressed collector beam energy recovery for enhancing overall system efficiency. Conceptual designs for pulsed and cw high power devices, and a cw low power device are presented.
Record URI: http://hdl.handle.net/1850/10212
Date: 1988-01

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