The calculation model of space-charge field based on the Galerkin series | Zendy

Huang Chuan-Lu | Zendy; Yaogen Ding | Zendy; Yong Wang | Zendy; Xingjuan Xie | Zendy; Dongping Gao | Zendy

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The calculation model of space-charge field based on the Galerkin series

Author(s) -

Huang Chuan-Lu,

Yaogen Ding,

Yong Wang,

Xingjuan Xie,

Dongping Gao

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.148401

Subject(s) - galerkin method , space charge , field (mathematics) , klystron , physics , series (stratigraphy) , charge (physics) , beam (structure) , space (punctuation) , computational physics , electron , finite element method , mathematics , quantum mechanics , computer science , optics , paleontology , biology , pure mathematics , thermodynamics , operating system

In this paper, we present a model of calculating the electron beam space-charge field using the partial Galerkin moments method. The space-charge field can be expanded as a series of different modes and thus using the Galerkin series. So, the space-charge field can be obtained finally through the solving the Galerkin coefficient equations set. A 2.5-dimensinal computer program of the beam-wave interaction in a klystron is compiled based on this model. Using the results from the program, the characteristic of the beam space-charge field is analyzed and the effects of the parameter in the simulation on the calculation result of the space-charge field are studied. This model uses the particle in cell method and it can be used in the 2- or 3-dimensional calculation model of the beam-wave interaction in a klystron.

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