Title :
Novel schemes of production and amplification of superradiance pulses by short intense electron beams
Author :
Zotova, Irina V. ; Ginzburg, Naum S. ; Sergeev, Alexander S. ; Rozental, Roman M. ; Baryshev, Vladimir R. ; Reutova, Anna G. ; Sharypov, Konstantin A. ; Shunailov, Sergey A. ; Ulmaskulov, Marat R. ; Yalandin, Michael I.
Author_Institution :
Inst. of Appl. Phys., Russian Acad. of Sci., Nizhny Novgorod
Abstract :
A novel mechanism of superradiance (SR) in the process of stimulated backscattering of powerful pump wave by intense electron bunch has been studied. Using a relativistic 38 GHz BWO as a pump wave source, the short SR pulses of scattered radiation were observed experimentally. Due to the Doppler up-shift, spectrum of scattered pulse included the frequencies up to 150 GHz. After modifications the same experimental set-up will be used for observation of effect of amplification of subnanosecond SR pulse propagating along nanoseconds electron beam. According to PIC-code simulations under experimental conditions output pulse peak power can exceed the power of driving electron beam.
Keywords :
Doppler shift; backscatter; backward wave oscillators; millimetre wave oscillators; millimetre wave tubes; relativistic electron beam tubes; Doppler up-shift; frequency 38 GHz; output pulse peak power; powerful pump wave; relativistic BWO; scattered radiation; short intense electron beams; stimulated backscattering; subnanosecond SR pulse propagation; superradiance pulses amplification; superradiance pulses production; Backscatter; Electron accelerators; Electron beams; Frequency; Power generation; Production; Pulse amplifiers; Pulse generation; Spontaneous emission; Strontium; Amplification; backscattering; superradiance;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516489
