PULSED ELECTRON BEAM SOURCES OF FAR INFRARED RADIATION
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Publisher:Ohio State University
The high peak current, short duration (1-10 psec) pulse train of electron bunches which provide the gain medium for infrared free electron lasers have been demodulated by periodic structures to produce short pulses of spectrally pure far infrared radiation. Alternatively, the spectral content of the radiation produced is a useful diagnostic of the characteristics of the electron bunches themselves. Implementation and results based both on a parasitic use of a 40 MeV free electron laser beam and a dedicated 1 MeV microwave gun will be discussed. Details will be given on the coupling between the electron bunches and the periodic structure, and the relation of this coupling to the radiation produced.
Author Institution: Department of Physics, Ohio State University; Department of Physics, Duke University; Department of Physics, North Carolina Central University
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