DocumentCode :
1060390
Title :
Ultra-Low Field NMR of 
for 
Detection and Characterization
Author :
Magnelind, Per E. ; Matlashov, Andrei N. ; Volegov, Petr L. ; Espy, Michelle A.
Author_Institution :
Los Alamos Nat. Lab., Los Alamos, NM, USA
Volume :
19
Issue :
3
fYear :
2009
fDate :
6/1/2009 12:00:00 AM
Firstpage :
816
Lastpage :
818
Abstract :
We have demonstrated the first ultra-low field (ULF) nuclear magnetic resonance measurements of uranium hexafluoride (UF6), 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 80degC.
Keywords :
nondestructive testing; nuclear magnetic resonance; spin-lattice relaxation; uranium compounds; 235U detection; NMR; UF6; mean transverse relaxation time; nondestructive surveillance system; nonproliferation surveillance; polarization field; sensitive noninvasive detection system; temperature 80 C; two-frequency technique; ultra-low field nuclear magnetic resonance measurements; uranium enrichment process; SQUID; ULF-NMR; uranium hexafluoride;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2009.2019562
Filename :
5067157
Link To Document :
