Bloch, Hansen and Packard: the nuclear induction experiment

What changed

Demonstrated nuclear magnetic induction in bulk matter with RF fields and pickup coils.

Scientific scope

The record is the exact three-author 1946 Physical Review experiment paper on pages 474–485, not Bloch's adjacent sole-author paper Nuclear Induction. It does not absorb Purcell's independent work, later spectroscopy or MRI.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact three-author 1946 Physical Review experiment paper on pages 474–485, not Bloch's adjacent sole-author paper Nuclear Induction. It does not absorb Purcell's independent work, later spectroscopy or MRI.

Contributors

• Felix Bloch · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
• W. W. Hansen · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
• Martin Packard · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.

• APS page for The Nuclear Induction Experiment
• CiNii record for The Nuclear Induction Experiment

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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