关于反传统核磁共振装置磁体系统设计的探讨

Discussions on the Design of the Magnet System of Unc onventional Nuclear Magnetic Resonance Devices

在传统的核磁共振装置中，都是磁体包围着样品。但在近年来出现的一些核磁共振装置中，样品却位于磁体之外。由于这些装置的设计思路与传统情况有很大的区别，我们把它们归为一类，称为“磁体—样品”按反传统方式布置的核磁共振装置。为叙述简便起见，简称为反传统的核磁共振装置。本文首先回顾了反传统核磁共振装置的发展情况，然后对其进行了分类并就每类装置的磁体系统的特点进行了分析和总结，最后提出了磁体系统的初步设计思路。

In conventional NMR devices,the sample is enclosed by the magnet.But in some NMR devices appeared recently,the sample is out of the magnet.Since there are great differences between the design thoughts of these devices and conventional devices,we classify them into one group,and name them as NMR devices whose “magnetsample” are disposed by unconventional mode.For the convenience of narration,we call them unconventional NMR devices for short. The development of unconventional NMR devices is reviewed at first in this article,then unconventional NMR devices are divided into two groups and the characters of the magnet system of each group are analyzed and summarized.At last, the primary design thoughts of magnet system of unconventional NMR devices are proposed.