Enhanced hot electron generation from liquid jets in moderate intensity laser-plasma interactions
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909564886056960 |
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| author | Sabui, Ratul Rahul, S. V. Mondal, Angana Bhardwaj, Archit Gopal, Ram Sharma, Vandana Krishnamurthy, M. |
| author_facet | Sabui, Ratul Rahul, S. V. Mondal, Angana Bhardwaj, Archit Gopal, Ram Sharma, Vandana Krishnamurthy, M. |
| contents | We report the generation of MeV temperature electrons using sub-terawatt laser systems with a liquid methanol jet as a target. Remarkably, even at laser intensities of 1016W/cm2, liquid cylindrical (2D) 15 micron methanol jets produce electrons with temperatures of 1 MeV. Hot electron emission characteristics are strikingly similar to those observed in spherical microdroplet (3D) targets. These results validate that modeling such experiments using 2D PIC simulation is not a compromising approximation. This work further simplifies the experimental complexities towards a multi-KHz highly regenerative source of directed multi-MeV electron (and associated x-ray and ion) generation, demanding laser intensities 100x lower than conventional laser plasma sources. Increased source energy and pointing stability are crucial for imaging or radiographic applications from such sources. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_03217 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Enhanced hot electron generation from liquid jets in moderate intensity laser-plasma interactions Sabui, Ratul Rahul, S. V. Mondal, Angana Bhardwaj, Archit Gopal, Ram Sharma, Vandana Krishnamurthy, M. Plasma Physics We report the generation of MeV temperature electrons using sub-terawatt laser systems with a liquid methanol jet as a target. Remarkably, even at laser intensities of 1016W/cm2, liquid cylindrical (2D) 15 micron methanol jets produce electrons with temperatures of 1 MeV. Hot electron emission characteristics are strikingly similar to those observed in spherical microdroplet (3D) targets. These results validate that modeling such experiments using 2D PIC simulation is not a compromising approximation. This work further simplifies the experimental complexities towards a multi-KHz highly regenerative source of directed multi-MeV electron (and associated x-ray and ion) generation, demanding laser intensities 100x lower than conventional laser plasma sources. Increased source energy and pointing stability are crucial for imaging or radiographic applications from such sources. |
| title | Enhanced hot electron generation from liquid jets in moderate intensity laser-plasma interactions |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2504.03217 |