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Nuclear Quadrupole Moment

Applicable units are those of quantitykind:NuclearQuadrupoleMoment

"Nuclear Quadrupole Moment" is a quantity that characterizes the deviation from spherical symmetry of the electrical charge distribution in an atomic nucleus.

http://en.wikipedia.org/wiki/Nuclear_quadrupole_resonance

http://www.iso.org/iso/catalogue_detail?csnumber=31895

$Q = (\frac{1}{e}) \int (3z^2 - r^2)\rho(x, y, z)dV$, in the quantum state with the nuclear spin in the field direction $(z)$, where $\rho(x, y, z)$ is the nuclear electric charge density, $e$ is the elementary charge, $r^2 = x^2 + y^2 + z^2$, and $dV$ is the volume element $dx$ $dy$ $dz$.

"Nuclear Quadrupole Moment" is a quantity that characterizes the deviation from spherical symmetry of the electrical charge distribution in an atomic nucleus.

Q