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Twin Symmetric E-plane Slab Loaded Waveguide Structure for Point Beam Acceleration

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Abstract

Renewed interest regarding the exploitation of dielectric loaded waveguides in high gradient accelerator structures requires a closed form field formulation as cut-off frequencies and optimisation are problematic for numerical methods. In this paper we will present efficient closed form solution for generic slab loaded waveguide boundary value problems. This solution offers flexibility in a sense that it can be further exploited to derive a Green’s function linking transverse field expressions for planar structures. The developed solution is demonstrated for a twin slab E-plane slab loaded structure coupled to a Point source emitter assembly. The emission characteristics of the point source emitter assembly are optimized to generate a high intensity and focused beam to be fed to this E-plane slab loaded waveguide structure for beam acceleration. The field analysis, mode nomenclature, modal hierarchy, modal bandwidth, cut-off plane, impedance plane and dispersion relations for this accelerating structure is included for sake the of completeness.

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Acknowledgements

The authors wish to acknowledge Ms Tasneem Zafar for her valuable suggestions. Mr. Arthur Haigh and Mr. William Keith contributed to the material development work. Mr. Junaid Zafar is funded by a Pakistani Government HEC scholarship award.

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Authors and Affiliations

  1. Electromagnetic and Microwave Research Group, University of South Asia, Lahore, 54000, Pakistan

    H. Zafar

  2. Microwave and Communication Systems Research Group, School of Electrical & Electronic Engineering, University of Manchester, Manchester, M60 1QD, England, UK

    J. Zafar & A. A. P. Gibson

  3. Department of Physics, INMOL, Lahore, 54600, Pakistan

    K. Masood

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  1. H. Zafar
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Correspondence to J. Zafar.

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Zafar, H., Zafar, J., Gibson, A.A.P. et al. Twin Symmetric E-plane Slab Loaded Waveguide Structure for Point Beam Acceleration. J Infrared Milli Terahz Waves 30, 159–171 (2009). https://doi.org/10.1007/s10762-008-9432-z

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