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Superconducting magnets for MRI and MRS.

Aimants supaconducteurs pour l'IRM et la SRM.

Author(s) : KNÜTTEL B., WESTPHAL M.

Summary

Since the discovery in the early 1980s of nuclear magnetic resonance spectroscopy and imaging technology, all the components of these systems have undergone major developments, in particular the magnet required to produce the main magnetic field. Very soon, superconducting technology very soon met the increasingly complex requirements of nuclear magnetic resonance. After a brief summary of the developments that took place over the last two decades, the authors give a more detailed presentation of the technological requirements and possibilities, using a magnetic system for MRI and MRS as an example. Along with the basic specifications primarily required in the past (such as intensity, homogeneity and stability of the magnetic field), new requirements take on increasing importance, such as keeping size to a minimum thanks to leakage reduction, minimizing the use of cryogenic fluids, longer intervals between maintenance, a shorter installation time, reduced weight and size and a better cost/performance ratio. The article is conceived as an overview of other fields of application, among which extreme field spectroscopy (around 800 MHz) and a presentation of present development trends.

Details

  • Original title: Aimants supaconducteurs pour l'IRM et la SRM.
  • Record ID : 2007-0029
  • Languages: French
  • Subject: Technology
  • Source: Sixth conference on cryogenics and superconductivity. Proceedings (comprising papers and posters)./ Sixièmes Journées de cryogénie et de supraconductivité. Recueil des présentations orales et posters.
  • Publication date: 2000/05/16

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