Ultra-low field NMR for detection and characterization of 235 UF6 [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators: Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

We have demonstrated the first ultra-low field (ULF) nuclear magnetic resonance measurements of uranium hexafluoride (UF₆), both depleted and 70% enriched, which is used in the uranium enrichment process. A sensitive non-invasive detection system would have an important role in non-proliferation surveillance. A two-frequency technique was employed to remove the transients induced by rapidly switching off the 50 mT pre-polarization field. A mean transverse relaxation time T₂ of 24 ms was estimated for the un-enriched UF₆ sample measured at a mean temperature of 80 C. Nuclear magnetic resonance at ULF has several advantages including the ability to measure through metal, such as pipes, and simple magnetic field generation hardware. We present here recent data and discuss the potential for non-proliferation monitoring of enrichment and flow velocity.

Report Numbers

E 1.99:la-ur-09-03755
E 1.99: la-ur-09-3755
la-ur-09-3755
la-ur-09-03755

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Note

Published through SciTech Connect.
01/01/2009.
"la-ur-09-03755"
" la-ur-09-3755"
Conference for Institute for Nuclear Materials Management ; July 12, 2009 ; Tucson, AZ.
Espy, Michelle A; Magnelind, Per E; Matlashov, Andrei N; Urbaitis, Algis V; Volegov, Petr L.

Funding Information

AC52-06NA25396

View MARC record | catkey: 14399122