Abstract

Fast-ion and suprathermal electron energies have been measured from plasmas generated by 25 ps duration neodymium laser pulses focussed onto solid targets. The relationship between the fast-ion energy and the energy of the suprathermal electrons in the plasma has been demonstrated and these energies have been found to increase in proportion to I 0.35±0.05 for targets of aluminum and copper, with I the laser intensity.

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