A compact laser-plasma source for high-repetition-rate bi-modal X-ray and electron imaging
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915256790417408 |
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| author | Mondal, Angana Sabui, Ratul Khanna, Sonali Rahul, S V Tata, Sheroy Anand, M Gopal, Ram Krishnamurthy, M |
| author_facet | Mondal, Angana Sabui, Ratul Khanna, Sonali Rahul, S V Tata, Sheroy Anand, M Gopal, Ram Krishnamurthy, M |
| contents | Bright sources of high-energy X-rays and electrons are indispensable tools in advanced imaging. Yet, current laser-driven systems typically support only single-modality imaging, require complex infrastructure, or operate at low repetition rates. Here, we demonstrate a compact, table-top laser-plasma source capable of generating synchronized electron and X-ray pulses at 1 kHz using just 2 mJ per pulse. A structured methanol droplet target enables quasi-single-shot electron radiographs and broadband, energy-resolved X-ray images, facilitating bi-modal imaging of both metallic and biological specimens. We achieve resolutions of 13.6 um for electrons and 21 um for X-rays, and demonstrate tomographic reconstruction using 35 projections. This compact platform rivals large-scale petawatt systems in resolution and brightness, while remaining scalable and accessible for high-throughput imaging in materials science and biomedicine. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_17560 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A compact laser-plasma source for high-repetition-rate bi-modal X-ray and electron imaging Mondal, Angana Sabui, Ratul Khanna, Sonali Rahul, S V Tata, Sheroy Anand, M Gopal, Ram Krishnamurthy, M Optics Applied Physics Plasma Physics Bright sources of high-energy X-rays and electrons are indispensable tools in advanced imaging. Yet, current laser-driven systems typically support only single-modality imaging, require complex infrastructure, or operate at low repetition rates. Here, we demonstrate a compact, table-top laser-plasma source capable of generating synchronized electron and X-ray pulses at 1 kHz using just 2 mJ per pulse. A structured methanol droplet target enables quasi-single-shot electron radiographs and broadband, energy-resolved X-ray images, facilitating bi-modal imaging of both metallic and biological specimens. We achieve resolutions of 13.6 um for electrons and 21 um for X-rays, and demonstrate tomographic reconstruction using 35 projections. This compact platform rivals large-scale petawatt systems in resolution and brightness, while remaining scalable and accessible for high-throughput imaging in materials science and biomedicine. |
| title | A compact laser-plasma source for high-repetition-rate bi-modal X-ray and electron imaging |
| topic | Optics Applied Physics Plasma Physics |
| url | https://arxiv.org/abs/2504.17560 |