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

  • P. Koester (a1), G.C. Bussolino (a1), G. Cristoforetti (a1), A. Faenov (a2) (a3), A. Giulietti (a1), D. Giulietti (a4) (a5), L. Labate (a1) (a5), T. Levato (a1) (a6), T. Pikuz (a2) (a7) and L.A. Gizzi (a1) (a5)...


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.


Corresponding author

Address correspondence and reprint requests to: P. Koester, Consiglio Nazionale delle Ricerche – Istituto Nazionale Ottica, Via Moruzzi 1, 56124 Pisa, Italy. E-mail:


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