NMR in Magnetic Field of the Earth: Pre-Polarization of Nuclei with Alternating Magnetic Field

被引:4
作者
Chizhik, Vladimir I. [1 ]
Kupriyanov, Pavel A. [1 ]
Mozzhukhin, George V. [2 ]
机构
[1] St Petersburg State Univ, St Petersburg 198504, Russia
[2] Gebze Inst Technol, Dept Phys, Fac Sci, TR-41400 Gebze, Turkey
基金
俄罗斯基础研究基金会;
关键词
TO-NOISE RATIO; RELAXATION PROCESSES; RESONANCE; SPECTROSCOPY; PRINCIPLE; SYSTEM; SPINS;
D O I
10.1007/s00723-014-0543-5
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
The polarization of nuclei in the low static magnetic field B-0 with an alternating magnetic field B*(B* >> B-0) at a very low frequency f(m) (but f(m) >> 1/T-1, where T-1 is the spin-lattice relaxation time) has been investigated. The question of the optimization of the energy consumption during the pre-polarization is also considered. The possibilities of the method are illustrated by the observation of nuclear magnetic resonance signals from a few liquids.
引用
收藏
页码:641 / 651
页数:11
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