Design and Fabrication of Compact Arrayed Magnet for Biological EPR Imaging
Design and Fabrication of Compact Arrayed Magnet for Biological EPR Imaging
复制标题
用于生物 EPR 成像的紧凑阵列磁体的设计和制造
DOI：
10.1007/s00723-020-01256-4
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发表时间：
2020
影响因子：
1
通讯作者：
Fujii Hirotada G.
中科院分区：
文献类型：
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作者：
Sato-Akaba Hideo;Okada Yuki;Tsuji Kentaro;Emoto Miho C.;Fujii Hirotada G.
为构建750 MHz的电子顺磁共振（EPR）成像系统，研制了一种便携式小型EPR成像磁体。为了实现低成本的制造，它表明，使用硝酰基探针的氧化还原EPR成像所需的磁性均匀性，可以近似地再现通过定期安排小钕磁铁，易于处理。一个五通道线圈驱动器组成的运算放大器和开关电源被开发为场扫描，场调制，和三个场梯度，以缩小尺寸的成像系统。采用数字化EPR控制台控制的3D径向序列，成功地进行了4-氧代-2，2，6，6-四甲基哌啶-d16 -1-氧基（tempone-d16）的EPR成像。
A portable and compact electron paramagnetic resonance (EPR) imaging magnet was developed for building a 750 MHz EPR imaging system. To realize low-cost fabrication, it was shown that the magnetic homogeneity required for redox EPR imaging using nitroxyl probes can be approximately reproduced by regularly arranging small neodymium magnets that are easy to handle. A five-channel coil driver consisting of operational amplifiers and switching power supplies was developed for field sweep, field modulation, and three field gradients to downsize the imaging system. The EPR imaging of 4-oxo-2,2,6,6-tetramethylpiperidine-d16-1-oxyl (tempone-d16) using a phantom was successfully performed by employing a 3D radial sequence controlled by a digital EPR console.
基于永磁体/磁体阵列的便携式低成本 MRI 系统
DOI：
10.13104/imri.2019.23.3.179
发表时间：
2018
期刊：
Investigative Magnetic Resonance Imaging
影响因子：
--
作者：
S. Huang;Z. Ren;S. Obruchkov;Jia Gong;R. Dykstra;Wenwei Yu
通讯作者：
Wenwei Yu