Figure 3
From: Characteristics of Ions Emission from Ultrashort Laser Produced Plasma

(a) Shows the emitted charges dependence on the atomic weight for different elements for both fast and slow ions. (b) Shows the calculated total charges using equation 5 and the experimental total emitted charge, data were fitted as A−0.75 based on equation 5. (c) Indicates how the velocity changes with ion mass. Best fitting shows that Velocity scales as M−0.5, for slow and fast ions. Data were measured at 0° IC angle and 5 J/cm2 (1.25E14W/cm2).