V. A. Flegentov, K. V. Safronov, D. S. Gavrilov, A. G. Kakshin, N. A. Pkhaiko, A. V. Potapov, “Acceleration of electrons in hollow glass capillaries under the action of intense picosecond laser pulses”, Kvantovaya Elektronika, 2021, Volume 51, Number 9,Pages <nobr>846

Interaction of extreme light fields with matter

Acceleration of electrons in hollow glass capillaries under the action of intense picosecond laser pulses

V. A. Flegentov, K. V. Safronov, D. S. Gavrilov, A. G. Kakshin, N. A. Pkhaiko, A. V. Potapov

Russian Federal Nuclear Center E. I. Zababakhin All-Russian Scientific Research Institute of Technical Physics, Snezhinsk

Abstract: The generation of relativistic electron beams in hollow glass capillaries is investigated using a picosecond laser system. A plasma is formed in a capillary due to the ablation of its inner walls by a specially formed pre-pulse. Electron beams with an opening angle of ~40 mrad, exponential energy spectrum with maximum energy about 20 MeV, and a total charge of ~0.2 nC are experimentally detected.

Keywords: picosecond laser pulse, pre-pulse, hollow capillary, relativistic electrons, magnetic electron spectrometer.

Received: 13.07.2021