UNB MRI Centre, Department of Physics, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada.
Instituto Politecnico Nacional-CIIDIR Unidad Oaxaca, Hornos 1003, Sta. Cruz Xoxocotlan, Oaxaca, Mexico.
J Magn Reson. 2021 May;326:106964. doi: 10.1016/j.jmr.2021.106964. Epub 2021 Mar 10.
This paper details the design, fabrication, and testing of a new portable magnet, generically termed the Proteus magnet, that can undertake a wide range of MR measurements. The Proteus magnet is intended for H measurements of liquids and is fully functional when submersed in the sample of interest. The Proteus magnet is fabricated from a pair of low-cost, commercial, NdFeB disk magnets, axially polarized, with their North and South poles aligned. The two N52 NdFeB magnets - 31.75 mm diameter and 6.35 mm thickness were separated by 10 mm. The gap between the magnets is sufficient for a RF shield and transverse rectangular solenoid RF probe. The sensor was evaluated through a series of measurements including bulk CPMG, saturation recovery T, self-diffusion, T - T, and D - T.
本文详细介绍了一种新型便携式磁铁的设计、制造和测试，该磁铁通常称为 Proteus 磁铁，可进行多种磁共振测量。Proteus 磁铁用于液体的 H 测量，并且在浸入感兴趣的样品中时完全有效。Proteus 磁铁由一对低成本、商用 NdFeB 磁盘磁铁制成，轴向极化，其北极和南极对齐。两个 N52NdFeB 磁铁 - 直径 31.75 毫米，厚度 6.35 毫米，彼此相隔 10 毫米。磁铁之间的间隙足以容纳射频屏蔽和横向矩形螺线管射频探头。该传感器通过一系列测量进行了评估，包括体 CPMG、饱和恢复 T、自扩散、T-T 和 D-T。
