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Characterization of platinum and gold ions emitted from laser produced plasmas using solid state nuclear track detectors

Bhatti, K. A. and Rafique, M. S. and Khaleeq-ur-Rahman, M. and Latif, A. and Hussain, K. and Hussain, A. and Chaudhary, K. T. and Ahmed Tahir, Bashir and Qindeel, Rabia (2011) Characterization of platinum and gold ions emitted from laser produced plasmas using solid state nuclear track detectors. Vacuum, 85 (10). pp. 915-919. ISSN 0042-207X

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Official URL: http://dx.doi.org/10.1016/j.vacuum.2011.01.005

Abstract

Investigations on key characteristics of ions emitted from Laser Induced plasmas are reported. A Q-switched Nd: 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 to produce plasma plume. The ions thus emitted 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 distances between the targets and detectors are 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.

Item Type:Article
Uncontrolled Keywords:anisotropy and forward peaking and vacuum, ions emission, Nd: YAG Laser, SSNTD's
Subjects:Q Science
Divisions:Science
ID Code:28872
Deposited By: Liza Porijo
Deposited On:30 Nov 2012 00:42
Last Modified:30 Nov 2012 00:42

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