High-charge divergent electron beam generation from high-intensity laser interaction with a gas-cluster target

High-charge divergent electron beam generation from high-intensity laser interaction with a gas-cluster target
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P. Koester, G.C. Bussolino, G. Cristoforetti, A. Faenov, A. Giulietti, D. Giulietti, L. Labate, T. Levato, T. Pikuz, L.A. Gizzi

Laser and Particle Beams, vol.33, 331-338, (2015)

Abstract

We report on an experimental study on the interaction of a high-contrast 40 fs duration 2 TW laser pulse with an argon-cluster target. A high-charge, homogeneous, large divergence electron beam with moderate kinetic energy (~2 MeV) is observed in the forward direction. The results show that an electron beam with a charge as high as 12 nC can be obtained using a table-top laser system. It was demonstrated that the accelerated electron beam is suitable for a variety of applications such as micro-radiography of thin samples in a wide field of view. It can also be applied for in vitro dosimetry studies.

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