quadrupole

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quadrupole

(ˈkwɒdrʊˌpəʊl)
n
(General Physics) physics a set of four associated positive and negative electric charges or two associated magnetic dipoles
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References in periodicals archive ?
In many ways, TOF-MS brings together the best of both full-scan and SIM modes of quadrupoles, providing data across the full mass range while retaining good sensitivity.
But the systems were higher priced than quadrupoles and accelerated the market's division into routine ICP-MS and high resolution ICP-MS segments.
VG Quadrupoles have developed a combination of a quadrupole mass spectrometer (mass ranges up to 1000 amu) and an energy analyzer which, together with an appropriate sampling system, offers a sophisticated instrument for gaining maximum energy and mass information from plasma or ion beam processes.
Quadrupoles are being considered for this application since they can monitor several chemical species simultaneously with a fast response time.
Using standard matrix models in the thin-lens approximation, researchers determined that three normal magnets--a quadrupole and two dipoles--that were leftover after shutdown of the Berkeley Lab Bevalac could provide the power needed for Element 118.
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