Spectrochimica Acta Part B Atomic Spectroscopy • Vol 216
Depth profiling of W Ta based fusion-relevant samples using picosecond laser ablation
April 2024 • Shweta Soni, Sahithya Atikukke, Matej Veis, Nima Bolouki, Pavol Ďurina, Pavel Dvořák, Martina Mrkvičková, E. Grigore, P. Veis
This study presents a detailed picosecond LIBS analysis of WTa coatings on Molybdenum substrate with varying layer thicknesses using ps-LIBS for fusion relevant applications. Ps-LIBS is performed on three WTa layers; two with deuterium (∼7μm thickness) and one without deuterium (∼1μm thickness). The LIBS measurements are conducted under argon gas flow at 5±0.2 mbar pressure with different laser pulse energies (1 mJ, 3 mJ) and 100 spectra are recorded consecutively at one spot on the sample for different set of gat…