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← ScienceWhich outcome occurs when an MRI technician places a ferromagnetic tool too close to the superconducting magnet?
A)Quench event due to magnetocaloric effect✓
B)Increased radio frequency signal amplitude
C)Improved spatial resolution of image
D)Decreased helium consumption by cryostat
💡 Explanation
A quench occurs because the sudden introduction of a ferromagnetic material disrupts the magnetic field's stability. The Meissner effect is overcome, causing rapid energy dissipation and boiling off the liquid helium; therefore a quench ensues, rather than stable imaging processes.
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