| 摘要 |
A method and apparatus generate a pre-polarizing magnetic field having a rise-time of less than about 10 microseconds and/or a fall-time of less than about 10 microseconds for immersing a tissue sample in the pre-polarized magnetic field to polarize an animal tissue sample whereby magnetic gradient and/or radio-frequency pulses may be applied in order to read out the location and/or state of the spins. A method and apparatus deliver such magnetic fields through planar coils. A method and apparatus enable guidance and propulsion of magnetic fluids.
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