Laser-Induced Breakdown Spectroscopy (LIBS) to Detect of Remains Uranium Metals in the Basra Soil

摘要

The laser-induced breakdown spectroscopy system (LIBS) had been designed for analysis of two samples of Iraqi soil in Basra (Zubair and Faw) via analysis of induced plasma emissions that generated via high peak power laser pulse, the system that design consist of Nd:YAG laser passively Q-switched with output laser pulse energy (120mJ@1064nm) and (10ns) pulse duration, the laser beam was focused via converging lens with a focal length (100mm) that had generated (15.28*10~(6)W/mm~(2)) power intensity, optical spectrum analyzer with spectrum range of (320-740 nm) and (0.2nm) optical resolution had been used to analysis of emitted plasma spectrum, three emission lines had been recorded (383.96, 393.40 and 394.44 nm) which are compared with NIST database, the research had focus on Uranium element in the soil, that is considered as the most dangerous pollutants on the environment and a major cause of cancer in Basra.