Laser-polarized 129Xe NMR and MRI at ultralow magnetic fields

被引：34

作者：

Wong-Foy, A ^{[1
]}

Saxena, S

Moulé, AJ

Bitter, HML

Seeley, JA

McDermott, R

Clarke, J

Pines, A

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

来源：

JOURNAL OF MAGNETIC RESONANCE | 2002年 / 157卷 / 02期

关键词：

SQUID; imaging; laser polarized; xenon; ultralow field;

D O I：

10.1006/jmre.2002.2592

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Laser-polarized Xe-129 and a high-T-c superconducting quantum interference device (SQUID) are used to obtain magnetic resonance images in porous materials at a magnetic field of 2.3 mT, corresponding to a Larmor frequency of 27 kHz. Image resolution of 1 mm is obtained with gradients of only 1 mT/m. The resolution of xenon chemical shifts in different physicochemical environments at ultralow fields is also demonstrated. Details of the circulating flow optical pumping apparatus and the SQUID spectrometer are presented. (C) 2002 Elsevier Science (USA).

引用

页码：235 / 241

页数：7

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