Chinese Journal of Magnetic Resonance >
Design and Construction of a Fully-Opened Unilateral Nuclear Magnetic Resonance System
Received date: 2014-03-16
Revised date: 2014-10-30
Online published: 2014-12-05
Supported by
国家重大科学仪器设备开发专项资助项目(2013YQ170463).
The goal of the study is to design and construct a system that can be used to detect magnetic resonance signals generated in the stray magnetic field produced by fully-opened unilateral magnets. The radiofrequency (RF) probe was carefully designed to meet the detection depth requirement for specific applications, and tested on a unilateral nuclear magnetic resonance experiment system. The probe had a 90º pulse width as short as 2.5 s. The whole system has a short system dead time (i.e., 10 s), and the minimum half echo time was 15 s. The SGSE-CPMG experiment was performed on the system to acquire signals from a depth of 5 mm under a constant B0 gradient of 15.3 T/m. Diffusion coefficients were measured under the constant B0 gradient.
WANG Hong-zhi1 , 2* , LIU Xiang1 , MIAO Zhi-ying1 , CHEN Shan-shan2 , SHI Qun-yan1 , XU Luo-yuan3 , LU Zhi-yong3 , LIU Li-rong3 , YANG Pei-qiang3 . Design and Construction of a Fully-Opened Unilateral Nuclear Magnetic Resonance System[J]. Chinese Journal of Magnetic Resonance, 2014 , 31(4) : 488 -503 . DOI: 10.11938/cjmr20140404
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