Quadrupole vs Octupole - What's the difference?
quadrupole | octupole |
(physics) A distribution of either electric charge or magnetization equivalent to two dipoles that point in opposite directions.
* 1975 , David M. Cook, The Theory of the Electromagnetic Field ,
(physics) A magnet with two north poles and two south poles, used to focus a beam of particles.
As nouns the difference between quadrupole and octupole
is that quadrupole is quadripole, two-port network while octupole is (physics) anything having eight poles or electrodes, but especially a combination of two quadrupoles used for controlling beams of charged particles.quadrupole
English
(wikipedia quadrupole)Noun
(en noun)page 123,
- Consider a linear quadrupole consisting of a point charge of strength 2q'' at the origin and point charges of strength —''q'' at (0, 0, ''a'') and (0, 0, —''a ).