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MRI Related Terms

- Q -

  • QUENCH

    • An event which can only occur in superconducting magnets, it is caused by a loss of superconductivity; a rapid increase in the resistivity of the magnet, which generates heat that results in the rapid evaporation of the magnet coolant (liquid helium). This evaporated coolant is a hazard that requires emergency venting systems to protect patients and operators. A quench can cause total magnet failure.


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