V. S. Belyaev, V. I. Vinogradov, A. P. Matafonov, V. P. Krainov, V. S. Lisitsa, A. Ya. Faenov, T. A. Pikuz, I. Yu. Skobelev, A. I. Magunov, S. A. Pikuz, V. P. Andrianov, G. N. Ignat'ev, Yu. I. Kozhunov, O. B. Kozlov, A. M. Chekmarev, “Effective temperature and the directional motion of fast ions in a picosecond laser plasma”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2005, Volume 81, Issue 12,Pages <nobr>753

This article is cited in 14 papers

PLASMA, GASES

Effective temperature and the directional motion of fast ions in a picosecond laser plasma

V. S. Belyaev^a, V. I. Vinogradov^a, A. P. Matafonov^a, V. P. Krainov^b, V. S. Lisitsa^c, A. Ya. Faenov^d, T. A. Pikuz^d, I. Yu. Skobelev^d, A. I. Magunov^ed, S. A. Pikuz^f, V. P. Andrianov^g, G. N. Ignat'ev^g, Yu. I. Kozhunov^g, O. B. Kozlov^g, A. M. Chekmarev^h

^a The Central Research Institute of Machinery
^b Moscow Institute of Physics and Technology
^c Russian Research Centre "Kurchatov Institute", Moscow
^d Federal State Unitary Enterprise (FSUE) "National Research Institute for Physicotechnical and Radio Engineering Measurements",
^e General Physics Institute named after A. M. Prokhorov, Russian Academy of Sciences
^f Scientific Association for High Temperatures
^g Research Institute for Pulse Technology, Moscow
^h P. N. Lebedev Physical Institute, Russian Academy of Sciences

Abstract: Experimental data are reported on the generation of fast ions in a picosecond laser plasma at a laser-radiation intensity of 2 × 10¹⁸ W/cm². The results are obtained by measuring the Doppler spectra of hydrogen-like fluorine ions. An important feature of the energy distribution of fast ions is a slow decrease up to an energy of 1.4 MeV. In addition, the directional motion of fast ions deep into a target is found due to the redshift of the Doppler profile of the Ly _α line. The parameters of the energy distribution of the ions are theoretically estimated.

PACS: 32.30.Rj, 52.50.Jm, 52.70.La

Received: 11.05.2005