Application of snow nanograin targets for the generation of fast ions in femtosecond laser plasma

A. Ya Faenov, A. I. Magunov, S. A. Pikuz, S. V. Gasilov, I. Yu Skobelev, T. Palchan, A. Zigler, Z. Henis

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We have measured the energy of the directed motion of multiply charged ions produced when solid targets are exposed to low-contrast (10-3- 10-2) femtosecond laser pulses with intensities 10 15-1016 W cm-2. The measurements are based on the recording of spatially resolved X-ray spectra for H-and He-like oxygen ions in the target plane. Analysis of the Heβ and Ly α line profiles has revealed fractions of accelerated ions in plasma with energies from several to several tens of kiloelectronvolts. We show that using a layer of frozen nanometer-size water droplets as the targets leads to an effective absorption of laser pulses and a twofold rise in the energy (to 0.1 MeV) of He-like oxygen ions compared to the use of solid targets.

Original languageEnglish
Pages (from-to)351-355
Number of pages5
JournalJournal of Experimental and Theoretical Physics
Volume107
Issue number3
DOIs
StatePublished - Sep 2008

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