Experimental observation of cyclotron superradiance under group synchronism conditions
- Ginzburg, N S
- Zotova, I V
- Sergeev, A S
- Konoplev, I V
- Phelps, A D R
- Cross, A W
- Cooke, S J
- Shpak, V G
- Yalandin, M I
- Shunailov, S A
- Ulmaskulov, M R
Publication date
March 1997
DOI Publisher
American Physical Society (APS) ISSN
0031-9007Abstract
Intense microwave pulses (several hundreds of kilowatts) of ultrashort duration (less than 0.5 ns) were obtained from an ensemble of electrons rotating in a uniform magnetic field. The comparison with theoretical simulations proves that this emission can be interpreted as cyclotron superradiance. The maximum radiation power was achieved under group synchronism conditions, when the electron bunch translational velocity coincides with the group velocity of the wave propagating in the waveguide
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