Noun
(physics) A distribution of either electric charge or magnetization equivalent to two dipoles that point in opposite directions.
(physics) A magnet with two north poles and two south poles, used to focus a beam of particles.
Source: en.wiktionary.orgDeuterium NMR spectra are especially informative in the solid state because of its relatively small quadrupole moment in comparison with those of bigger quadrupolar nuclei such as chlorine-35, for example. Source: Internet
However, in the real world, many bodies rotate, and this introduces oblateness and distorts the gravity field, and gives a quadrupole moment to the gravitational field which is significant at distances comparable to the radius of the body. Source: Internet
The ions are accelerated by the source to 35 keV and matched by low energy beam transport (LEBT) into the radio-frequency quadrupole (RFQ) which applies a 750 keV electrostatic field giving the ions their second acceleration. Source: Internet
Magnetic field shape descriptions Schematic quadrupole magnet ("four-pole") magnetic field. Source: Internet
The measured electric quadrupole of the deuterium is main. Source: Internet
The objects in lensed images are parameterized according to their weighted quadrupole moments. Source: Internet