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An improved magnetic field simulator - MAGFLD.

Ghosh, T. K. and Carter, Richard G. and Yadav, V. and Joshi, Y. and Guptra, R. and Srivastava, A. and Vishwanath, R. and Joshi, S. N. (2004) An improved magnetic field simulator - MAGFLD. In: Proceedings of the 5th IEEE international vacuum electronics conference (IVEC 2004). , pp. 318-319. ISBN 0-7803-8261-7

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    Abstract

    An improved two-dimensional simulator MAGFLD has been developed which is useful for the design and simulation of periodic permanent magnet (PPM) focusing system for linear beam tubes. At present, input is possible only through the input file, which is very simple and user friendly. A complete PPM circuit is generated using the coordinates of first pole piece, first magnet, gun adapter (if the structure is a-periodic) and the region of computation. Small mesh units of either square or rectangular shapes can be used with mesh refinement capability in one or more regions in any or both directions for better accuracy of the solution. Materials with different magnetic permeability can be modeled by defining a characteristic value for each mesh point of the geometry. The effective potential value at each point in the region of interest is calculated based on the vector potential model by using the 5-point finite difference method and the solution is achieved by over relaxation technique for faster convergence. This package has an interface with EGUN to model the electron gun and collector under the influence of magnetic field. Versatile color graphics are capable of plotting both axial magnetic field and flux lines along with the magnetic circuit. MAGFLD has been validated against some published data and experimental results.

    Item Type: Contribution in Book/Report/Proceedings
    Additional Information: "©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE." "This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder."
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Departments: Faculty of Science and Technology > Engineering
    ID Code: 20115
    Deposited By: ep_ss_importer
    Deposited On: 10 Dec 2008 14:05
    Refereed?: No
    Published?: Published
    Last Modified: 24 Jan 2014 05:56
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/20115

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