The ion beam of a Mather-type 23.25 J plasma focus device operated with air filling at 10 Torr was registered using CR-39 nuclear track detector. The irradiated samples were etched in NaOH solution at $70^{\circ}$C for 1 h. It is found here that plasma beam contains multi-components of microbeams. The individual track density of microbeams is estimated and the total current density of the plasma stream is measured to be 1.2 mA/cm². A model for counting the track density of individual microbeams is proposed here. Faraday cup measurements showed the ion pulse with energy ranging from 5.8 keV to 3.3 keV.

A theoretical study of the nuclear reaction cross-section for the production of ⁶⁴Cu and ⁸⁶Y was performed from the nuclear reactions ⁶⁴Ni(p, n)⁶⁴Cu, ⁶⁴Ni(d, 2n)⁶⁴Cu, ⁶⁶Zn(d, 𝛼)⁶⁴Cu, ⁶⁸Zn(p, n𝛼)⁶⁴Cu, ⁸⁶Sr(p, n)^86gY, ⁸⁷Sr(p, 2n)^86gY and ⁸⁸Sr(p, 3n)^86gY. The calculations were performed using three codes EMPIRE, TALYS and ALICE-IPPE. The excitation function curves for the investigated reactions have been constructed from the enriched targets using ⁶⁴Ni, ⁶⁶Zn, ⁶⁸Zn, ⁸⁶Sr, ⁸⁷Sr and ⁸⁸Sr. The calculated excitation functions and the experimental data were compared. Mean standardized deviation, mean relative deviation and mean ratio statistical parameters were introduced to control the quality of the fitting between both the experimentally and the theoretically calculated cross-sections.