Nuclear magneton
The nuclear magneton (symbol μN), is a physical constant of magnetic moment, defined in SI units by:
where:
In SI units, its value is approximately:
In Gaussian CGS units, its value can be given in convenient units as
The nuclear magneton is the natural unit for expressing magnetic dipole moments of heavy particles such as nucleons and atomic nuclei.
The magnetic dipole moment of the electron, which is much larger as a consequence of much larger charge-to-mass ratio, is usually expressed in units of the Bohr magneton. The Bohr magneton, which is calculated in the same fashion as the nuclear magneton, is larger than μN by a factor equal to the ratio of the proton to electron mass, or about a factor of 1836.
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