Überrück Till, Blümich Bernhard
RWTH Aachen University, Institut für Technische und Makromolekulare Chemie, Worringerweg 2, 52074 Aachen, Germany.
RWTH Aachen University, Institut für Technische und Makromolekulare Chemie, Worringerweg 2, 52074 Aachen, Germany.
J Magn Reson. 2019 Jan;298:77-84. doi: 10.1016/j.jmr.2018.11.011. Epub 2018 Nov 28.
C-shaped permanent magnets offer a compromise between sample accessability and field strength as well as homogeneity compared to single-sided devices or Halbach arrays. A new approach to passively shim C-shaped dipole magnets is presented. It relies on the magnet poles being constructed from a set of adjustable magnet elements. Two pole concepts are introduced, which allow the correction of the field profile and passively shim the magnet without the need of additional pole shoes or shim pieces.
与单侧设备或哈尔巴赫阵列相比，C形永久磁铁在样品可及性、场强和均匀性之间提供了一种折衷方案。本文提出了一种被动匀场C形偶极磁体的新方法。它依赖于磁极由一组可调节的磁体元件构成。介绍了两种磁极概念，它们可以校正场分布并被动地对磁体进行匀场，而无需额外的极靴或垫片。
