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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Experimental observation of cyclotron superradiance under group synchronism conditions

Ginzburg, N S and Zotova, I V and Sergeev, A S and Konoplev, I V and Phelps, A D R and Cross, A W and Cooke, S J and Shpak, V G and Yalandin, M I and Shunailov, S A and Ulmaskulov, M R (1997) Experimental observation of cyclotron superradiance under group synchronism conditions. Physical Review Letters, 78 (12). pp. 2365-2368. ISSN 0031-9007

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Abstract

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.