Ultra-Low-Field MRI and Spin-Lattice Relaxation Time of H-1 in the Presence of Fe3O4 Magnetic Nano-Particles Detected With a High-T-C DC-SQUID

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	Ultra-Low-Field MRI and Spin-Lattice Relaxation Time of H-1 in the Presence of Fe3O4 Magnetic Nano-Particles Detected With a High-T-C DC-SQUID
	Wang, N ; Jin, YR ; Jiang, FY ; Zeng, JF ; Gao, MY ; Wu, YL ; Deng, H ; Zheng, GL ; Li, J ; Chen, YF ; Tian, Y ; Ren, YF ; Chen, GH ; Zheng, DN
刊名	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
	2013
卷号	23 期号:3
关键词	Magnetic resonance imaging nuclear magnetic resonance superconducting quantum interference device (SQUID)
ISSN号	1051-8223
通讯作者	Wang, N (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	We have carried out ultra-low-field nuclear magnetic resonance (NMR) and magnetic resonance imaging experiments in microtesla magnetic fields using a high-T-c dc-SQUID sensor. The measurements were carried out in a home-made magnetically shielded room. NMR spectra of H-1 from tap water and other sub-stance samples were obtained in the field range from 10-200 mu T. By adapting a transformer coupled detection system, the signal-to-noise ratio of NMR peak in a single-shot measurement for 10 ml tap water was increased significantly as compared with our previously used direct detection method. The improvement was attributed to the increased coupling efficiency and reduced SQUID noise. By applying magnetic field gradient in three directions, one- and two-dimensional imaging results were obtained from water phantom samples. Furthermore, the effect of Fe3O4 magnetic nanoparticles on the spin-lattice relaxation time T-1 was studied.
资助信息	Ministry of Science and Technology of China [2011CBA00106, 2009CB929102]; National Science Foundation of China [11104333, 10974243, 11161130519]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57644]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wang, N,Jin, YR,Jiang, FY,et al. Ultra-Low-Field MRI and Spin-Lattice Relaxation Time of H-1 in the Presence of Fe3O4 Magnetic Nano-Particles Detected With a High-T-C DC-SQUID[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2013,23(3).
APA	Wang, N.,Jin, YR.,Jiang, FY.,Zeng, JF.,Gao, MY.,...&Zheng, DN.(2013).Ultra-Low-Field MRI and Spin-Lattice Relaxation Time of H-1 in the Presence of Fe3O4 Magnetic Nano-Particles Detected With a High-T-C DC-SQUID.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,23(3).
MLA	Wang, N,et al."Ultra-Low-Field MRI and Spin-Lattice Relaxation Time of H-1 in the Presence of Fe3O4 Magnetic Nano-Particles Detected With a High-T-C DC-SQUID".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23.3(2013).