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Formation of hollow ion beams of various shapes using multipole magnets
https://repo.qst.go.jp/records/75799
https://repo.qst.go.jp/records/75799e1900563-5d27-431f-837b-aee093815d50
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-05-13 | |||||
| タイトル | ||||||
| タイトル | Formation of hollow ion beams of various shapes using multipole magnets | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
百合, 庸介
× 百合, 庸介× 福田, 光宏× 湯山, 貴裕× Yuri, Yosuke× Yuyama, Takahiro |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | This study describes a novel and simple beam-focusing method for the formation of a charged-particle beam with a hollow transverse intensity distribution using the nonlinear focusing force of multipole magnets in a beam transport line. The dynamic behavior of the beam focused by multipole magnets is theoretically investigated to predict the phase-space shape and spatial profile of the hollow beam. It is shown numerically and experimentally that the hollow beam has a steep peak at the peripheral edge and high contrast between the edge peak intensity and the intensity near the beam center. Depending on the order and strength of the applied nonlinear multipole field, the cross-sectional shape of the hollow beam can be diversely transformed, e.g., into an ellipse, a rounded rectangle, a rhombus for octupole focusing, or a triangle for sextupole focusing. The present beam-formation method, applicable to various charged-particle beams of different parameters such as the particle species, kinetic energy, and time structure, enables the shaping of the transverse profile that can never be realized through conventional linear beam optics. | |||||
| 書誌情報 |
Progress of Theoretical and Experimental Physics 巻 2019, 号 5, p. 053G01, 発行日 2019-05 |
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| 出版者 | ||||||
| 出版者 | Oxford University Press | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2050-3911 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1093/ptep/ptz024 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1093/ptep/ptz024 | |||||
