Meter-scale supersonic gas jets for multi-GeV laser-plasma accelerators
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909395566198784 |
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| author | Miao, B. Shrock, J. E. Rockafellow, E. Sloss, A. Milchberg, H. M. |
| author_facet | Miao, B. Shrock, J. E. Rockafellow, E. Sloss, A. Milchberg, H. M. |
| contents | Pushing the high energy frontier of laser wakefield electron acceleration (LWFA) to 10 GeV and beyond requires extending the propagation of relativistic intensity pulses to ~1 m in a low density ($N_e\sim 10^{17} cm^{-3}$) plasma waveguide. We present the development and characterization of two types of supersonic gas jet for meter-scale multi-GeV laser wakefield accelerators. The first type is a 30-cm long single-module gas jet, which demonstrates good axial uniformity using hydrogen, the preferred working gas for LWFA. The second type is a modular jet composed of multiple 11-cm-long modules. Longitudinal density profile control is demonstrated with a 2-module (22 cm long) hydrogen jet using gas valve trigger timing. A 1.0-m-long jet is then assembled from 9 modules, and generation of 1.0-m long hydrogen plasma is demonstrated using a femtosecond Bessel beam. To our knowledge, this is the longest gas jet laser plasma yet generated. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_10236 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Meter-scale supersonic gas jets for multi-GeV laser-plasma accelerators Miao, B. Shrock, J. E. Rockafellow, E. Sloss, A. Milchberg, H. M. Accelerator Physics Pushing the high energy frontier of laser wakefield electron acceleration (LWFA) to 10 GeV and beyond requires extending the propagation of relativistic intensity pulses to ~1 m in a low density ($N_e\sim 10^{17} cm^{-3}$) plasma waveguide. We present the development and characterization of two types of supersonic gas jet for meter-scale multi-GeV laser wakefield accelerators. The first type is a 30-cm long single-module gas jet, which demonstrates good axial uniformity using hydrogen, the preferred working gas for LWFA. The second type is a modular jet composed of multiple 11-cm-long modules. Longitudinal density profile control is demonstrated with a 2-module (22 cm long) hydrogen jet using gas valve trigger timing. A 1.0-m-long jet is then assembled from 9 modules, and generation of 1.0-m long hydrogen plasma is demonstrated using a femtosecond Bessel beam. To our knowledge, this is the longest gas jet laser plasma yet generated. |
| title | Meter-scale supersonic gas jets for multi-GeV laser-plasma accelerators |
| topic | Accelerator Physics |
| url | https://arxiv.org/abs/2411.10236 |