Compact Spin-Polarized Positron Acceleration in Multi-Layer Microhole Array Films
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866914801911857152 |
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| author | Dou, Zhen-Ke Lv, Chong Salamin, Yousef I. Zhang, Nan Wan, Feng Xu, Zhong-Feng Li, Jian-Xing |
| author_facet | Dou, Zhen-Ke Lv, Chong Salamin, Yousef I. Zhang, Nan Wan, Feng Xu, Zhong-Feng Li, Jian-Xing |
| contents | Compact spin-polarized positron accelerators play a major role in promoting significant positron application research, which typically require high acceleration gradients and polarization degree, both of which, however, are still great challenging. Here, we put forward a novel spin-polarized positron acceleration method which employs an ultrarelativistic high-density electron beam passing through any hole of multi-layer microhole array films to excite strong electrostatic and transition radiation fields. Positrons in the polarized electron-positron pair plasma, filled in the front of the multi-layer films, can be captured, accelerated, and focused by the electrostatic and transition radiation fields, while maintaining high polarization of above 90% and high acceleration gradient of about TeV/m. Multi-layer design allows for capturing more positrons and achieving cascade acceleration. Our method offers a promising solution for accelerator miniaturization, positron injection, and polarization maintaining, and also can be used to accelerate other charged particles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_11186 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Compact Spin-Polarized Positron Acceleration in Multi-Layer Microhole Array Films Dou, Zhen-Ke Lv, Chong Salamin, Yousef I. Zhang, Nan Wan, Feng Xu, Zhong-Feng Li, Jian-Xing Plasma Physics Accelerator Physics Compact spin-polarized positron accelerators play a major role in promoting significant positron application research, which typically require high acceleration gradients and polarization degree, both of which, however, are still great challenging. Here, we put forward a novel spin-polarized positron acceleration method which employs an ultrarelativistic high-density electron beam passing through any hole of multi-layer microhole array films to excite strong electrostatic and transition radiation fields. Positrons in the polarized electron-positron pair plasma, filled in the front of the multi-layer films, can be captured, accelerated, and focused by the electrostatic and transition radiation fields, while maintaining high polarization of above 90% and high acceleration gradient of about TeV/m. Multi-layer design allows for capturing more positrons and achieving cascade acceleration. Our method offers a promising solution for accelerator miniaturization, positron injection, and polarization maintaining, and also can be used to accelerate other charged particles. |
| title | Compact Spin-Polarized Positron Acceleration in Multi-Layer Microhole Array Films |
| topic | Plasma Physics Accelerator Physics |
| url | https://arxiv.org/abs/2405.11186 |