Study on axially symmetric aperture lenses with extension of an inhomogeneous electric field
作者： Seok-Gy Jeon , Jung-Il Kim , Sung-Tae Han , Jong-Uk Kim
DOI: 10.1109/IVELEC.2009.5193577
关键词:
摘要: We analyzed a compact lens by using modified analytical theory and three-dimensional particle-in-cell simulations. In lens, in which the thin paraxial trajectory approximations are not acceptable, an inhomogeneous electric field can be extended to entire region of object image spaces. Computer simulations current density electron beam temperature, quantities cannot estimated theory, show that aperture utilizing possibly used provide vacuum microelectronic device with high-current-density focused several hundred amperes per square centimeter.
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