共 24 条
Submillimeter-resolution magnetic resonance imaging at the Earth's magnetic field with an atomic magnetometer
被引:53
作者:

Xu, Shoujun
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机构:
Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

Crawford, C. W.
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h-index: 0
机构:
Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

Rochester, Simon
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Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

Yashchuk, Valeriy
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机构: Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

Budker, Dmitry
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机构:
Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

Pines, Alexander
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机构:
Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
机构:
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
来源:
PHYSICAL REVIEW A
|
2008年
/
78卷
/
01期
关键词:
D O I:
10.1103/PhysRevA.78.013404
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
Magnetic resonance imaging in the Earth's magnetic field is achieved using a sensitive atomic magnetometer for detection. We demonstrate images with a submillimeter resolution by recording the flow of two water paths meeting at a T-shaped mixer. The high homogeneity of the Earth's field allows the use of weak gradient fields which circumvent the concomitant-field effect. To distinguish the two input channels, we employed selective polarization, which is a unique and noninvasive labeling method for low-field magnetic resonance imaging. Our technique imposes minimal physical constraints on the object under study, in contrast to conventional high-field magnetic resonance imaging. This technique is applicable for microfluidic imaging in laboratory-on-a-chip devices.
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