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Low temperature environment causes losing magnetization properties of magnets. How do you solve the problem for MR-ML™ system’s magnet?

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Low temperature environment causes losing magnetization properties of magnets. How do you solve the problem for MR-ML™ system’s magnet?

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Relevant consideration for the temperature effect during transportation would be whether or not the magnet experiences an irreversible loss of magnetization (correspondingly, the magnetic field intensity). The magnet used in MR-ML™ system uses a high energy sintered SmCo-type material. There is no irreversible losses of magnetization should be expected at all in the temperature range from about -273 ° C to about +100 ° C. Do not confuse this magnet with non-conductive ferrite-type magnet that is used by NUMAR. It has positive temperature coefficient of coercive force, and therefore irreversible loss is part of its magnetization at low temperatures.

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