| Literature DB >> 29131985 |
Adam Lang1, Dirk Engelberg2, Nicholas T Smith3, Divyesh Trivedi4, Owen Horsfall4, Anthony Banford4, Philip A Martin5, Paul Coffey5, William R Bower6, Clemens Walther7, Martin Weiß7, Hauke Bosco7, Alex Jenkins8, Gareth T W Law9.
Abstract
Laser Induced Breakdown Spectroscopy (LIBS) has the potential to allow direct, standoff measurement of contaminants on nuclear plant. Here, LIBS is evaluated as an analytical tool for measurement of Sr and Cs contamination on type 304 stainless steel surfaces. Samples were reacted in model acidic (PUREX reprocessing) and alkaline (spent fuel ponds) Sr and Cs bearing liquors, with LIBS multi-pulse ablation also explored to measure contaminant penetration. The Sr II (407.77nm) and Cs I (894.35nm) emission lines could be separated from the bulk emission spectra, though only Sr could be reliably detected at surface loadings >0.5mgcm-2. Depth profiling showed decay of the Sr signal with time, but importantly, elemental analysis indicated that material expelled from LIBS craters is redistributed and may interfere in later laser shot analyses.Entities:
Keywords: Cesium; Contaminated stainless steel; Decommissioning; LIBS; Strontium
Year: 2017 PMID： 29131985 DOI： 10.1016/j.jhazmat.2017.10.064
Source DB: PubMed Journal: J Hazard Mater ISSN： 0304-3894 Impact factor: 10.588