Tungsten ion source under double-pulse laser ablation system
Khalil Ahmed Asaad I1, †, Hafez Ashraf I2, Elgohary Mahmoud E3, 4, Morsy Mohamed A5
       

(color online) (a)–(d) Laser induced plasma spectra of the tungsten target recorded in the UV-visible region at 1500 ns delay for the UV or IR SP and (UV+IR) DP geometries.