Characterization of Platinum and Gold ions emitted from laser produced plasmas using solid state nuclear track detectors

► Investigations on ions emitted from Laser Induced Plasma ► A Q-switched Ndw: YAG pulsed laser at 1064 nm, 9-14 ns and 1.1 MW, is focused on 4 N pure Gold (Au) and Platinum (Pt) targets at 45° with the normal to the target ► The emitted ions thus are detected by CR-39 Solid State Nuclear Track Detectors (SSNTD's), placed at angles 0°, 30°, 60°, and 90° with respect to the target normal. ► The distance between the targets and detectors is 9 cm ► The experiments are performed under a vacuum ∼10−3 torr and the ion tracks are recorded on SSNTD's for 300 laser shots. ► The etched detectors are analyzed with the help of Motic Images Optical Microscope (Motic Advance 3.1). ► The flux of ions exhibits anisotropic behavior where as maximum energies of these ions are not only anisotropic but also forward peaked. ► YAG Laser, Ions Emission, SSNTD's, Anisotropy and Forward Peaking and Vacuum