Low-Voltage, Megawatt Free-Electron Lasers At A Frequency Near 300 Ghz

J H Booske; V L Granatstein; T M Antonsen; W W Destler; B Levush; I D Mayergoyz; D Radack; J Rodgers; E T Rosenbury; Z Segalov; A Serbeto

doi:10.1117/12.965091

9 May 1988 Low-Voltage, Megawatt Free-Electron Lasers At A Frequency Near 300 Ghz

J H Booske, V L Granatstein, T M Antonsen, W W Destler, B Levush, I D Mayergoyz, D Radack, J Rodgers, E T Rosenbury, Z Segalov, A Serbeto

Author Affiliations +

Proceedings Volume 0873, Microwave and Particle Beam Sources and Propagation; (1988) https://doi.org/10.1117/12.965091
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

Design procedures and beam transport feasibility experiments are 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), (2) 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.

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J H Booske, V L Granatstein, T M Antonsen, W W Destler, B Levush, I D Mayergoyz, D Radack, J Rodgers, E T Rosenbury, Z Segalov, and A Serbeto "Low-Voltage, Megawatt Free-Electron Lasers At A Frequency Near 300 Ghz", Proc. SPIE 0873, Microwave and Particle Beam Sources and Propagation, (9 May 1988); https://doi.org/10.1117/12.965091

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KEYWORDS

Free electron lasers

Electron beams

Oscillators

Energy efficiency

Microwave radiation

Beam propagation method

Particle beams

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