Abstract
IN the detection of nuclear induction signals, it is usual to modulate the main polarizing magnetic field in such a way that its intensity sweeps cyclically over a small region embracing the resonance value1. If the amplified signal is fed to a cathode-ray oscilloscope in which the X-sweep follows the instantaneous field modulation, it gives rise to a ‘blip’ at a corresponding part of the trace.
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References
Bloch, F., Phys. Rev., 70, 460 (1946).
Bloembergen, N., Purcell, E. M., and Pound, R. V., Phys. Rev., 73, 679 (1948).
Bloch, F., and Garber, D. H., Phys. Rev., 76, 585 (1949).
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ROSS, I., JOHNSON, F. A Sensitive Method of Recording Nuclear Induction Signals. Nature 167, 286–287 (1951). https://doi.org/10.1038/167286b0
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DOI: https://doi.org/10.1038/167286b0
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