Abstract
In this work, the transverse magnetic field confined laser-induced breakdown spectroscopy (MC-LIBS) technique was applied to investigate the signal sensitivity and repeatability of Al alloy plasma in the specially designed assembly. The emission signals from laser-induced plasma were recorded with varying laser energy (80 to 160 mJ) and magnetic field strength (1 to 3.5 kG). An emission signal enhancement up to 7 times was observed at 140 mJ laser energy and at 3 kG magnetic field strength. Compared to conventional LIBS, the magnetic field confined-LIBS improved the signal-to-noise ratio (SNR) by up to 5 times and the detection limit (LOD) from 86 to 26 ppm for zinc emission lines. Repeatability was evaluated using the relative standard deviation (RSD) of the Mg and Si emission lines, which was improved from 23 to 12% and 25 to 14%, respectively. Similarly, the measurement-to-measurement RSDs in electron temperature (Te) and electron number density (Ne) were improved from 12 to 7% and 1 3 to 5% when compared with conventional LIBS.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
