Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Generation of powerful ultrashort electromagnetic pulses based on superradiance

Ginzburg, N S and Zotova, I V and Novozhilova, Y V and Sergeev, A S and Phelps, A D R and Cross, A W and Wiggins, S M and Ronald, K and Shpak, V G and Yalandin, M I and Shunailov, S A and Ulmaskulov, M R (2001) Generation of powerful ultrashort electromagnetic pulses based on superradiance. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 475 (1-3). pp. 385-390. ISSN 0168-9002

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Experimental results of the observation of superradiation from intense, subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating TM01 wave are presented. The ultra-short microwave pulses in Ka, W, and G band were generated with repetition frequencies of up to 25 Hz. Observation of RF breakdown of ambient air, as well as direct measurements by hot-carrier germanium detectors, leads to an estimate of the peak power as high as 60-120 MW for the 300-400 ps pulses at 38 GHz. The initial observation of 75 GHz 10-15 MW radiation pulses with duration less than 150 ps, and of 150 GHz microwave spikes with a risetime of 75ps are also reported. Comparison with simulations is discussed as well.

Item type: Article
ID code: 35608
Keywords: Cherenkov emission, superradiance, electron bunch, electron bunches, BWO, millimetre wave devices, electrical breakdown, microwave generation, Plasma physics. Ionized gases, Instrumentation, Nuclear and High Energy Physics
Subjects: Science > Physics > Plasma physics. Ionized gases
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 07 Nov 2011 13:51
    Last modified: 05 Sep 2014 13:25
    URI: http://strathprints.strath.ac.uk/id/eprint/35608

    Actions (login required)

    View Item