Quadrupole ion trap
Type of apparatus for isolating charged particles / From Wikipedia, the free encyclopedia
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Not to be confused with Quadrupole mass analyzer.
In experimental physics, a quadrupole ion trap or paul trap is a type of ion trap that uses dynamic electric fields to trap charged particles. They are also called radio frequency (RF) traps or Paul traps in honor of Wolfgang Paul, who invented the device[1][2] and shared the Nobel Prize in Physics in 1989 for this work.[3] It is used as a component of a mass spectrometer or a trapped ion quantum computer.