Guthausen A, Zimmer G, Blümler P, Blümich B
Lehrstuhl für Makromolekulare Chemie, Aachen, Germany.
J Magn Reson. 1998 Jan;130(1):1-7. doi: 10.1006/jmre.1997.1282.
Applications are discussed of a novel NMR device, the NMR MOUSE (mobile universal surface explorer), for characterization of polymers. Different properties of elastomers can be related to an effective transverse relaxation parameter T2eff. Effects of multi-echo sequences influence the decay curve and can be described in terms of B0 inhomogeneity and spin-lock effects. Furthermore, the signal-to-noise ratio (SIN) can be improved by use of steady-state free precession (SSFP) pulse sequences modified for use in inhomogeneous magnetic fields.
本文讨论了一种新型核磁共振（NMR）设备——NMR MOUSE（移动通用表面探测器）在聚合物表征方面的应用。弹性体的不同特性可与有效横向弛豫参数T2eff相关联。多回波序列的影响会改变衰减曲线，并且可以用B0不均匀性和自旋锁定效应来描述。此外，通过使用针对不均匀磁场进行修改的稳态自由进动（SSFP）脉冲序列，可以提高信噪比（SIN）。
