Gyro-amplifiers require relativistic electron beams with low velocity spread and with a high fraction of the electron energy associated with the cyclotron motion. For harmonic operation and mode control an axis-encircling beam is desirable. The passage of an electron beam through a non-adiabatic magnetic field reversal (cusp) converts part of the electron beam's axial velocity into axis-encircling transverse velocity. This magnetic field is produced using two solenoids wound in opposite sense. The main cavity coil produces the field required for interaction whilst a smaller secondary coil, which is positioned just behind the cathode surface, produces a reverse field. A cusp-based electron beam forming system, yielding a 10MW, 150kV, 70A axis-encircling beam for use in a gyro-TWA will be presented. The latest results from numerical simulations and experiments are presented and compared.


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    Titel :

    Design and Simulation of a Cusp Gun for use in Gyro-amplifiers


    Beteiligte:
    Rowlands, D.H. (Autor:in) / He, W. (Autor:in) / Whyte, C.G. (Autor:in) / Young, A.R. (Autor:in) / Cross, A.W. (Autor:in) / Phelps, A.D. R. (Autor:in) / Robertson, C.W. (Autor:in) / Ronald, K. (Autor:in)


    Erscheinungsdatum :

    01.09.2006


    Format / Umfang :

    1090297 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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