Laser ablation plasmas and spectroscopy for nuclear applications

EH Kwapis, J Borrero, KS Latty, HB Andrews… - Applied …, 2024 - opg.optica.org
The development of measurement methodologies to detect and monitor nuclear-relevant
materials remains a consistent and significant interest across the nuclear energy …

Optical spectroscopy and modeling of uranium gas-phase oxidation: Progress and perspectives

EJ Kautz, EN Weerakkody, MS Finko, D Curreli… - … Acta Part B: Atomic …, 2021 - Elsevier
Studies related to U gas-phase oxidation through plasma-and thermo-chemistry are
important for many fields, including environmental monitoring, forensic analysis, debris …

Review on recent advances in analytical applications of molecular emission and modelling

M Gaft, L Nagli, I Gornushkin, Y Raichlin - Spectrochimica Acta Part B …, 2020 - Elsevier
The review mainly deals with two topics that became important in applications of laser-
induced breakdown spectroscopy (LIBS) in recent years: the emission of halogen-and rare …

Laser ablation spectrometry for studies of uranium plasmas, reactor monitoring, and spent fuel safety

M Burger, LA Finney, L Garrett, SS Harilal… - … Acta Part B: Atomic …, 2021 - Elsevier
Nuclear security is one of the defining challenges of our time. Nuclear threats range from
deliberate dispersal of radioactive material to contaminate the vital infrastructure to diversion …

Oxidation in laser-generated metal plumes

EJ Kautz, MC Phillips, A Zelenyuk, SS Harilal - Physics of plasmas, 2022 - pubs.aip.org
The temporal evolution of atoms and molecules in a laser-produced plasma was
investigated using optical emission spectroscopy for several metal targets (ie, Al, Ti, Fe, Zr …

Physical conditions for UO formation in laser-produced uranium plumes

SS Harilal, EJ Kautz, BE Bernacki… - Physical Chemistry …, 2019 - pubs.rsc.org
We investigate the oxidation of uranium (U) species, the physical conditions leading to
uranium monoxide (UO) formation and the interplay between plume hydrodynamics and …

Time-resolved formation of uranium and silicon oxides subsequent to the laser ablation of U3Si2

EN Weerakkody, DG Weisz, J Crowhurst… - … Acta Part B: Atomic …, 2020 - Elsevier
The early-time kinetic behavior of species in a plume produced from laser ablation of U 3 Si
2 in an environment containing 2% O 2 is characterized using time-resolved absorption …

The role of ambient gas confinement, plasma chemistry, and focusing conditions on emission features of femtosecond laser-produced plasmas

EJ Kautz, J Yeak, BE Bernacki, MC Phillips… - Journal of analytical …, 2020 - pubs.rsc.org
Ultrafast laser ablation coupled with optical emission spectroscopy is currently under
development for standoff detection of elements and their isotopes for a wide range of …

Unraveling spatio-temporal chemistry evolution in laser ablation plumes and its relation to initial plasma conditions

EJ Kautz, MC Phillips, SS Harilal - Analytical Chemistry, 2020 - ACS Publications
The chemistry evolution in a laser ablation plume depends strongly on its initial physical
conditions. In this article, we investigate the impact of plasma generation conditions on the …

Impact of environmental oxygen on nanoparticle formation and agglomeration in aluminum laser ablation plumes

EJ Kautz, A Zelenyuk, B Gwalani, MJ Olszta… - The Journal of …, 2023 - pubs.aip.org
The role of ambient oxygen gas (O 2) on molecular and nanoparticle formation and
agglomeration was studied in laser ablation plumes. As a lab-scale surrogate to a high …