Laser Induced Breakdown Spectroscopy analysis of europium and samarium in aluminum oxide

Neptunium transition probabilities estimated through laser induced breakdown spectroscopy (LIBS) measurements

“…This system uses a 1064 nm, 161 ± 2.25 mJ, ∼5 ns pulsed Nd:YAG laser to perform laser ablation. 12 The sample enclosure contains mounted collimating optics at a small angle to the impending laser pulse. Through fiber optics, the collected light was routed to a Catalina Scientific Instruments EMU-120/65 echelle spectrometer equipped with a Raptor Falcon Blue EMCCD camera ( λ /FWHM ≈ 12 000) for analysis.…”

Approach to using 3D laser-induced breakdown spectroscopy (LIBS) data to explore the interaction of FLiNaK and FLiBe molten salts with nuclear-grade graphite

“…The integrated peak intensity was calculated using the approach described in previous work. 34,35 Briey, a simple integration of two spectral regions, an emission line region and a nearby background region where there are no emission peaks, were calculated for each spectrum. The background region was then subtracted from the emission line region.…”

Leveraging Multiple Raman Excitation Wavelength Systems for Process Monitoring of Nuclear Waste Streams

“…Monitoring approaches based on optical spectroscopy are uniquely suited to providing detailed chemical composition information on a process batch or stream. − Optical approaches can provide a range of chemical information, including identification and quantification of elemental and molecular species. ,− Optical approaches are also generally mature and can be flexibly integrated into a variety of process types. ,, As an example, optical spectroscopy probes can be plumbed into hazardous environments and are robust enough to withstand radiation dose, corrosive media, high temperatures, and wide ranges of pressures. ,− Most beneficially, for several optical approaches such as Raman, instrumentation and control equipment can be located in remote, safe locations with only fiber optics traversing the space between detectors and probes.…”