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

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 (235)U and (238)U in natural and highly enriched urani...

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Autores principales: Phillips, Mark C., Brumfield, Brian E., LaHaye, Nicole, Harilal, Sivanandan S., Hartig, Kyle C., Jovanovic, Igor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5476594/
https://www.ncbi.nlm.nih.gov/pubmed/28630409
http://dx.doi.org/10.1038/s41598-017-03865-9
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author Phillips, Mark C.
Brumfield, Brian E.
LaHaye, Nicole
Harilal, Sivanandan S.
Hartig, Kyle C.
Jovanovic, Igor
author_facet Phillips, Mark C.
Brumfield, Brian E.
LaHaye, Nicole
Harilal, Sivanandan S.
Hartig, Kyle C.
Jovanovic, Igor
author_sort Phillips, Mark C.
collection PubMed
description 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 (235)U and (238)U 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.
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spelling pubmed-54765942017-06-23 Two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes Phillips, Mark C. Brumfield, Brian E. LaHaye, Nicole Harilal, Sivanandan S. Hartig, Kyle C. Jovanovic, Igor Sci Rep Article 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 (235)U and (238)U 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. Nature Publishing Group UK 2017-06-19 /pmc/articles/PMC5476594/ /pubmed/28630409 http://dx.doi.org/10.1038/s41598-017-03865-9 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Phillips, Mark C.
Brumfield, Brian E.
LaHaye, Nicole
Harilal, Sivanandan S.
Hartig, Kyle C.
Jovanovic, Igor
Two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes
title Two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes
title_full Two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes
title_fullStr Two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes
title_full_unstemmed Two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes
title_short Two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes
title_sort two-dimensional fluorescence spectroscopy of uranium isotopes in femtosecond laser ablation plumes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5476594/
https://www.ncbi.nlm.nih.gov/pubmed/28630409
http://dx.doi.org/10.1038/s41598-017-03865-9
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