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Design, simulation and experiment of a cusp electron beam for millimeter wave gyro-devices

He, Wenlong and Donaldson, Craig and Li, Fengping and Cross, Adrian and Phelps, Alan and Ronald, Kevin (2009) Design, simulation and experiment of a cusp electron beam for millimeter wave gyro-devices. In: IEEE International Vacuum Electronics Conference, 2008, 2008-04-22 - 2008-04-24.

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    Abstract

    The design, simulation and experiment of a thermionic cusp electron gun that is to be used for millimeter wave generation will be presented. A cusp gun uses a non-adiabatic magnetic field reversal to obtain azimuthal motion on an electron beam resulting in an annular shaped, axis-encircling beam. The cusp gun was designed to generate a beam of 1.5A at 40kV with an adjustable velocity ratio of up to 3.0. The beam had a simulated axial velocity spread of 7.4% and alpha spread of 10.1%. The beam had an averaged radius of 0.35mm and beam thickness of 0.05mm which is ideal to drive sub-mm wave gyro-devices under investigation.

    Item type:Conference or Workshop Item(Paper)
    ID code:30855
    Keywords:cusp electron beam , gyro-devices , vacuum electronics, Plasma physics. Ionized gases
    Subjects:Science > Physics > Plasma physics. Ionized gases
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:06 May 2011 12:57
    Last modified:05 Jun 2019 04:55
    URI:https://strathprints.strath.ac.uk/id/eprint/30855
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