The nuclear magneton (symbol μN), is a physical constant of magnetic moment, defined by:
where:
- e is the elementary charge,
- ħ is the reduced Planck constant,
- mp is the proton rest mass
In SI units, its value is approximately:
- μN = 5.05078324(13)×10−27 J/T
The nuclear magneton is the natural unit for expressing magnetic dipole moments of heavy particles such as nucleons and atomic nuclei. On the contrary, the dipole moment of the electron, which is much higher as a consequence of much higher charge-to-mass ratio, is usually expressed in corresponding units of the Bohr magneton.
Famous quotes containing the word nuclear:
“Could it not be that just at the moment masculinity has brought us to the brink of nuclear destruction or ecological suicide, women are beginning to rise in response to the Mother’s call to save her planet and create instead the next stage of evolution? Can our revolution mean anything else than the reversion of social and economic control to Her representatives among Womankind, and the resumption of Her worship on the face of the Earth? Do we dare demand less?”
—Jane Alpert (b. 1947)