%0 Journal Article %T Low-cost, pseudo-Halbach dipole magnets for NMR %+ Department of Chemical Engineering and Biotechnology %+ Laboratoire Structure et Dynamique par Résonance Magnétique (LCF) (LSDRM) %A Tayler, Michael C.D. %A Sakellariou, Dimitrios %< avec comité de lecture %@ 1090-7807 %J Journal of Magnetic Resonance %I Elsevier %V 277 %P 143 - 148 %8 2017-09-06 %D 2017 %R 10.1016/j.jmr.2017.03.001 %K Nuclear magnetic resonance (NMR) %K Permanent magnets %K Low-field NMR %K Zero-field NMR %Z Chemical Sciences/Material chemistryJournal articles %X We present designs for compact, inexpensive and strong dipole permanent magnets aimed primarily at magnetic resonance applications where prepolarization and detection occur at different locations. Low-homogeneity magnets with a 7.5 mm bore size and field up to nearly 2 T are constructed using low-cost starting materials, standard workshop tools and only few hours of labor – an achievable project for a student or postdoc with spare time. As an application example we show how our magnet was used to polarize the nuclear spins in approximately 1 mL of pure [ 13 C]-methanol prior to detection of its high-resolution NMR spectrum at zero field (measurement field below 10 À10 T), where signals appear at multiples of the carbon-hydrogen spin-spin coupling frequency 1 J CH ¼ 140:7ð1Þ Hz. %G English %L cea-01488897 %U https://cea.hal.science/cea-01488897 %~ CEA %~ CNRS %~ PUBNIMBE %~ INC-CNRS %~ IRAMIS-NIMBE %~ CEA-UPSAY %~ UNIV-PARIS-SACLAY %~ CEA-UPSAY-SACLAY %~ TEST-HALCNRS %~ GS-ENGINEERING %~ IRAMIS %~ GS-CHIMIE %~ GS-PHYSIQUE %~ INSTITUT-SCIENCES-LUMIERE %~ TEST2-HALCNRS