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Study of beam optics and beam halo by integrated modeling of negative ion beams from plasma meniscus formation to beam acceleration

机译:从离子弯月面形成到束加速的负离子束的集成建模研究束光学和束晕

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摘要

To understand the physical mechanism of the beam halo formation in negative ion beams, a two-dimensional particle-in-cell code for simulating the trajectories of negative ions created via surface production has been developed. The simulation code reproduces a beam halo observed in an actual negative ion beam. The negative ions extracted from the periphery of the plasma meniscus (an electro-static lens in a source plasma) are over-focused in the extractor due to large curvature of the meniscus.
机译:为了了解负离子束中离子束晕形成的物理机理,已经开发了一种二维的单元格内粒子代码,用于模拟通过表面产生产生的负离子的轨迹。该模拟代码再现了在实际负离子束中观察到的束晕。由于弯液面的曲率较大,从血浆弯液面(源等离子体中的静电透镜)的外围提取的负离子在提取器中过度聚焦。

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  • 来源
    《Applied Physics Letters》 |2013年第2期|023512.1-023512.4|共4页
  • 作者单位

    Naruto University of Education, 748 Nakashima, Takashima, Naruto-cho, Naruto-shi, Tokushima 772-8502,Japan;

    Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Japan Atomic Energy Agency, 801-1 Mukouyama, Naka 319-0913, Japan;

    Japan Atomic Energy Agency, 801-1 Mukouyama, Naka 319-0913, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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