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What are Cryogens?

Cryogens are chemicals with very low boiling points used to cool the magnets on the MR scanner. Cryogens allow the magnet to remain in a superconducting state, drastically reducing the amount of power needed to control the MR scanner. The most common cryogen used in Magnetic Resonance Imaging is liquid helium. Cryogens are necessary to keep the scanner cool and working properly, but also pose physical hazards.

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