High Dose-Rate MeV Electron Beam from a Tightly-Focused Femtosecond IR Laser in Ambient Air: A Radiation Safety Issue

Simon Vallières,Jeffrey Powell,Tanner Connell,Michael Evans,Sylvain Fourmaux,Stéphane Payeur,Philippe Lassonde,François Fillion-Gourdeau, Steve MacLean,François Légaré

2023 Conference on Lasers and Electro-Optics (CLEO)（2023）

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摘要

We present a straightforward method to generate MeV-ranged, high dose-rate electrons in ambient air by tightly focusing a mJ-class femtosecond laser. The ability to reach relativistic intensities in ambient conditions leads to significant radiation safety concerns.

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