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Two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes

Journal Article · · Scientific Reports
 [1];  [2];  [2];  [2];  [3];  [4]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); University of Michigan
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Pennsylvania State Univ., University Park, PA (United States). Dept. of Mechanical and Nuclear Engineering
  4. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences
Here, we demonstrate measurement of uranium isotopes in femtosecond laser ablation plumes using two-dimensional fluorescence spectroscopy (2DFS). The high-resolution, tunable CW-laser spectroscopy technique clearly distinguishes atomic absorption from 235U and 238U in natural and highly enriched uranium metal samples. We present analysis of spectral resolution and analytical performance of 2DFS as a function of ambient pressure. Simultaneous measurement using time-resolved absorption spectroscopy provides information on temporal dynamics of the laser ablation plume and saturation behavior of fluorescence signals. The rapid, non-contact measurement is promising for in-field, standoff measurements of uranium enrichment for nuclear safety and security.
Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
US Department of Homeland Security (DHS); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC05-76RL01830; NA0002534
OSTI ID:
1367672
Alternate ID(s):
OSTI ID: 1367385
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 7; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (15)

Dual-Comb Spectroscopy of Laser-Induced Plasmas conference January 2017
Dual-comb spectroscopy of laser-induced plasmas journal March 2018
Atomic spectrometry update: review of advances in atomic spectrometry and related techniques journal January 2013
Atomic spectrometry update: review of advances in atomic spectrometry and related techniques journal January 2017
Isotope-resolved atomic beam laser spectroscopy of natural uranium journal January 2018
Atomic spectrometry update: review of advances in atomic spectrometry and related techniques journal January 2018
Physical conditions for UO formation in laser-produced uranium plumes journal January 2019
Time-resolved imaging of atoms and molecules in laser-produced uranium plasmas journal January 2019
Atomic spectrometry update: review of advances in atomic spectrometry and related techniques journal January 2019
Optical spectroscopy of laser-produced plasmas for standoff isotopic analysis journal June 2018
Elucidating uranium monoxide spectral features from a laser-produced plasma journal January 2018
Isotopic determination with molecular emission using laser-induced breakdown spectroscopy and laser-induced radical fluorescence journal January 2019
Standoff analysis of laser-produced plasmas using laser-induced fluorescence journal January 2018
Tracking of oxide formation in laser-produced uranium plasmas journal January 2018
Time-resolved dual-comb measurement of number density and temperature in a laser-induced plasma journal January 2019

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