Quadrupole

A quadrupole or quadrapole is one of a sequence of configurations of—for example—electric charge or current, or gravitational mass that can exist in ideal form, but it is usually just part of a multipole expansion of a more complex structure reflecting various orders of complexity.

Read more about Quadrupole:  Mathematical Definition, Electric Quadrupole, Generalization: Higher Multipoles, Magnetic Quadrupole, Gravitational Quadrupole

Other articles related to "quadrupole, quadrupoles":

Gravitational Quadrupole
... The mass quadrupole is very analogous to the electric charge quadrupole, where the charge density is simply replaced by the mass density ... This gives it a nonzero quadrupole moment ... Earth's gravitational field from this quadrupole is extremely important for artificial satellites close to Earth, it is less important for the Moon, because the ...
List Of Mass Spectrometry Acronyms - Q
... QUISTOR – Quadrupole ion storage trap QIT – Quadrupole ion trap QMS – Quadrupole mass spectrometer ...
Stacking (chemistry) - Geometric Configurations
... dimer can be explained by a balance of quadrupole/quadrupole and London dispersion forces ... While benzene does not have a dipole moment, it has a strong quadrupole moment ... The quadrupole moment is reversed for hexafluorobenzene due to the electronegativity of fluorine ...
Triple Quadrupole Mass Spectrometer
... A triple quadrupole mass spectrometer is a tandem mass spectrometer consisting of two quadrupole mass spectrometers in series, with a (non mass-resolving) radio ... The first (Q1) and third (Q3) quadrupoles serve as mass filters ...
AFP-675 - The Experiments - Quadrupole Ion Neutral Mass Spectrograph
... The Quadrupole Ion Neutral Mass Spectrograph was designed to support the CIRRIS 1A experiment by providing positive ion and neutral contaminant species ... package was made up of an electron impact ion source, an ion-focusing grid system, a set of quadrupole rods, and an electron multiplier ...