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25 July 1989 Interaction-Volume And Radiation Aperture Area Scaling Relations For High-Power Planar Orotron
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Abstract
The planar orotron structure is a versatile resonator which can be used as the basis for a cm-wavelength microwave generator. In its most elementary form, it consists of a narrow planar grating which is embedded in a conductor and opposed by a second conductor. Cylindrical section mirrors at the ends of the grating complete the resonator. The width of the grating is determined by the width of the driving electron beam. Thus, within limits set by beam stability, transverse scaling of the interaction volume is possible. In addition, the planar geometry allows easy stacking of additional resonators, and this provides a further scaling of the interaction volume. The aperture area of a complete multi-module resonator will increase with the total number of resonators, and this scaling can be used to maintain field strengths in an intense-beam-driven high-power source at levels below the breakdown threshold. A summary of the results needed in order to optimize the performance of a single orotron module will be presented and scaling of multi-resonator structures will be discussed.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John Walsh, Jonathan Jackson, Elizabeth Marshall, and Lian Dong "Interaction-Volume And Radiation Aperture Area Scaling Relations For High-Power Planar Orotron", Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); https://doi.org/10.1117/12.951810
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