Ultra-Low Field NMR of UF6 for 235U Detection and Characterization

被引：7
|
作者：
Magnelind, Per E. [1 ]
Matlashov, Andrei N. [1 ]
Volegov, Petr L. [1 ]
Espy, Michelle A. [1 ]
机构：
[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2009年 / 19卷 / 03期
关键词：
SQUID; ULF-NMR; uranium hexafluoride; MICROTESLA MAGNETIC-FIELDS; MRI; RELAXATION;
D O I：
10.1109/TASC.2009.2019562
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 T-2 of 24 ms was estimated for the un-enriched UF6 sample measured at a mean temperature of 80 degrees C.
引用
收藏
页码：816 / 818
页数：3
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