Fig. 8
Effect of charge-exchange collisions on the degree of enrichment of erbium isotopes. The distance traversed by photoions prior to collection at the ion collector is taken as 5 cm. The bandwidth of all excitation lasers is 500 MHz. The intensities of the excitation lasers are 800 W/cm2, 1000 W/cm2 and 2400 W/cm2 respectively. All the excitation lasers are tuned to 168Er resonance.
