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Study of the energy spectra of multiply charged Ti ions from a laser plasma

Experimental data are presented concerning the generation and investigation of multiply charged Ti ions from the plasma produced by the second harmonic radiation of a neodymium laser (with an energy under 14 J and a pulse duration of 2.5 ns). A group of ions with multiplicities ranging from +16 to +20 was recorded with an electrostatic energy mass analyser and a collector was employed to measure the ion current of this group, which was found to be equal to ∼1 mA cm-2 for an ion pulse duration of ∼0.8 μs.