Publication

A magnetic tunnel to shelter hyperpolarized fluids

Geoffrey Bodenhausen, Aurélien Bornet, Pascal Miéville, Sami Jannin, Jonas Milani, Basile Vuichoud, Roger Mottier
2015
Journal Articles

Abstract

To shield solutions carrying hyperpolarized nuclear magnetization from rapid relaxation during transfer through low fields, the transfer duct can be threaded through an array of permanent magnets. The advantages are illustrated for solutions containing hyperpolarized H-1 and C-13 nuclei in a variety of molecules. (C) 2015 Author(s).

Official source

https://infoscience.epfl.ch/entities/publication/51c56e7f-3311-4e56-8694-41932541e32f

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Geoffrey Bodenhausen, Aurélien Bornet, Pascal Miéville, Sami Jannin, Jonas Milani, Basile Vuichoud, Roger Mottier
2015
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/51c56e7f-3311-4e56-8694-41932541e32f

About this result

Related concepts (21)

Rare-earth magnet

A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements. Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets. The magnetic field typically produced by rare-earth magnets can exceed 1.2 teslas, whereas ferrite or ceramic magnets typically exhibit fields of 0.5 to 1 tesla. There are two types: neodymium magnets and samarium–cobalt magnets.

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A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets. A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door.

Ferrite (magnet)

A ferrite is a ceramic material made by mixing and firing iron(III) oxide (, rust) with one or more additional metallic elements, such as strontium, barium, manganese, nickel, and zinc. They are ferrimagnetic, meaning they are attracted by magnetic fields and can be magnetized to become permanent magnets. Unlike other ferromagnetic materials, most ferrites are not electrically conductive, making them useful in applications like magnetic cores for transformers to suppress eddy currents.

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