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A Greek mu with a capital N subscript, the nuclear magnetic unit.
Also known as: Nuclear magneton, Mu N, Nucleon magnetic moment unit
The nuclear magneton is the Bohr magneton scaled down by the proton-to-electron mass ratio, so it is about 1,836 times smaller. That ratio is why nuclear magnetic resonance needs far stronger fields than electron spin resonance for the same effect.
Denotes the nuclear magneton, the natural unit of magnetic moment for a nucleon.
Contexts: Laboratory
Is smaller than the Bohr magneton by the proton-to-electron mass ratio, which is the physical reason NMR and ESR operate at such different frequencies.
Contexts: Laboratory
A Greek lowercase mu with a small capital letter N set below and to the right.