Plasma lens for the focusing of positron bunches
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866908517616582656 |
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| author | Bondar, D. S. Lindstrøm, C. A. Maslov, V. I. Onishchenko, I. N. |
| author_facet | Bondar, D. S. Lindstrøm, C. A. Maslov, V. I. Onishchenko, I. N. |
| contents | The development of effective focusing schemes for positron bunches in plasma accelerators remains a significant challenge, as nonlinear regimes fail to create stable focusing channels for positrons. This work presents a method for focusing and improving the quality of positron bunches using a plasma lens operating in the linear regime. Through numerical simulations, we investigate two distinct focused positron bunch profiles: a purely Gaussian bunch and an elongated, flat-top bunch with Gaussian rising and falling edges. For both configurations, the results demonstrate the capability to achieve high-quality transverse focusing. Furthermore, beyond focusing, the proposed system enables potential possibility to reduce energy spread of positron bunches of the sequence after precursor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_03225 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Plasma lens for the focusing of positron bunches Bondar, D. S. Lindstrøm, C. A. Maslov, V. I. Onishchenko, I. N. Plasma Physics Accelerator Physics 65Z05 F.2.1 The development of effective focusing schemes for positron bunches in plasma accelerators remains a significant challenge, as nonlinear regimes fail to create stable focusing channels for positrons. This work presents a method for focusing and improving the quality of positron bunches using a plasma lens operating in the linear regime. Through numerical simulations, we investigate two distinct focused positron bunch profiles: a purely Gaussian bunch and an elongated, flat-top bunch with Gaussian rising and falling edges. For both configurations, the results demonstrate the capability to achieve high-quality transverse focusing. Furthermore, beyond focusing, the proposed system enables potential possibility to reduce energy spread of positron bunches of the sequence after precursor. |
| title | Plasma lens for the focusing of positron bunches |
| topic | Plasma Physics Accelerator Physics 65Z05 F.2.1 |
| url | https://arxiv.org/abs/2509.03225 |