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Faenov, A. Y.; Magunov, A. I.*; Pikuz, S. A.*; Gasilov, S. V.*; Skobelev, I. Yu.*; Palchan, T.*; Zigler, A.*; Henis, Z.*
Journal of Experimental and Theoretical Physics, 107(3), p.351 - 355, 2008/09
The energy of the directed motion of multiply charged ions produced when solid targets are exposed by low-contrast femtosecond laser pulses with low intensities. 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 He- and H-like ions line profiles has revealed fractions of accelerated ions in plasma with energies from several to several tens of kiloelectron volts. 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.
Palchan, T.*; Henis, Z.*; Faenov, A. Y.; Magunov, A. I.*; Pikuz, S. A.*; Gasilov, S. V.*; Skobelev, I. Yu.*; Zigler, A.*
Applied Physics Letters, 91(25), p.251501_1 - 251501_3, 2007/12
被引用回数:12 パーセンタイル:44.48(Physics, Applied)Generation of fast ions in snow nanotubes irradiated by femtosecond laser pulses in the intensity range of 10 - 10 W/cm was investigated. The fast ion energy was measured through X-ray emission spectra of multicharged ions of oxygen. The profile of the He- and Ly- in He-like and H-like oxygen lines demonstrates a significant broadening, which may indicate generation of fast He-like and H-like ions with energies of up to 100 keV.