Study of negative hydrogen ion beam optics using the 2D PIC method

K. Miyamoto, S. Okuda, A. Hatayama, M. Hanada, A. Kojima

研究成果: Conference contribution

9 被引用数 (Scopus)

抄録

We have developed the integrated 2D PIC code for the analysis of the negative ion beam optics, in which an overall region from the source plasma to the accelerator is modeled. Thus, the negative ion trajectory can be solved self-consistently without any assumption of the plasma meniscus form initially. This code can reproduce the negative ion beam halo observed in an actual negative ion beam. It is confirmed that the surface produced negative ions which are extracted near the edge of the meniscus can be one of the reasons for the beam halo: these negative ions are over-focused due to the curvature of the meniscus. The negative ions are not focused by the electrostatic lens, and consequently become the beam halo.

本文言語English
ホスト出版物のタイトルThird International Symposium on Negative Ions, Beams and Sources, NIBS 2012
ページ22-30
ページ数9
DOI
出版ステータスPublished - 2013
外部発表はい
イベント3rd International Symposium on Negative Ions, Beams and Sources, NIBS 2012 - Jyvaskyla, Finland
継続期間: 2012 9月 32012 9月 7

出版物シリーズ

名前AIP Conference Proceedings
1515
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other3rd International Symposium on Negative Ions, Beams and Sources, NIBS 2012
国/地域Finland
CityJyvaskyla
Period12/9/312/9/7

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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