We use a spatially and temporally resolved emission
tracking technique based on optical emission spectroscopy
to map the evolution of emission features
from uranium and its compounds in a plasma produced
by a nanosecond laser. We observe quenching of the
emission from neutral uranium (U I 591.538 nm) and
uranium monoxide (UO 593.55 nm) species with increasing
oxygen concentration and discuss possible reaction
pathways for dissociation or formation of higher
uranium oxides (UxOy). We further identify spectral
features between 320 and 380 nm and between 520 and
640 nm, which we attribute to higher uranium oxides.
Revised: January 3, 2019 |
Published: October 10, 2018
Citation
Skrodzki P.J., M. Burger, I. Jovanovic, M.C. Phillips, B.E. Brumfield, and S.S. Harilal. 2018.Tracking of oxide formation in laser-produced uranium plasmas.Optics Letters 43, no. 20:5118-5121.PNNL-SA-136967.doi:10.1364/OL.43.005118