A low-power X-band free electron laser by prebunching of the electrons

Authors

  • Fareq Malek,

    Corresponding author
    1. School of Computer and Communication Engineering, Universiti Malaysia Perlis (UniMAP), No. 12 & 14, Jalan Satu, Taman Seberang Jaya Fasa 3, Kuala Perlis 02000, Perlis, Malaysia
    • School of Computer and Communication Engineering, Universiti Malaysia Perlis (UniMAP), No. 12 & 14, Jalan Satu, Taman Seberang Jaya Fasa 3, Kuala Perlis 02000, Perlis, Malaysia
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  • James Lucas,

    1. School of Computer and Communication Engineering, Universiti Malaysia Perlis (UniMAP), No. 12 & 14, Jalan Satu, Taman Seberang Jaya Fasa 3, Kuala Perlis 02000, Perlis, Malaysia
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  • Yi Huang

    1. Department of Electrical Engineering and Electronics, The University of Liverpool, Brownlow Hill, Liverpool L69 3GJ, United Kingdom
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Abstract

We are developing a prototype free electron laser that is compact, low cost, and low power. The design, setup, and results of a novel X-band rectangular waveguide prebunched free electron laser (PFEL) are presented in this article. Our initial device operates at 10 GHz and uses two rectangular waveguide cavities (one for velocity modulation and the other for energy extraction). The electron beam used in this experiment is produced by thermionic electron gun, which operates at 3 kV and up to 50 μA. The nominal beam diameter is 1 mm passing across the X-band cavity resonators. The resonant cavity consists of a thin gap section of height 1.5 mm, which reduces the beam energy required for beam wave interaction. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2483–2486, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25493

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