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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 ]
A Paul trap is a type of quadrupole ion trap that uses static direct current (DC) and radio frequency (RF) oscillating electric fields to trap ions. Paul traps are commonly used as components of a mass spectrometer. The invention of the 3D quadrupole ion trap itself is attributed to Wolfgang Paul who shared the Nobel Prize in Physics in 1989 ...
Paul trap for the MIRACLS experiment. A Paul trap, also referred to as a quadrupole ion trap or a radio frequency (RF) trap, is an ion trap that uses dynamic electric fields to trap charged particles. It is not possible to create a configuration of static electricity fields to trap the particles in three dimensions, however it is possible with ...
The electrodynamic quadrupole ion trap currently used in trapped-ion quantum computing research was invented in the 1950s by Wolfgang Paul (who received the Nobel Prize for his work in 1989 [6]). Charged particles cannot be trapped in 3D by just electrostatic forces because of Earnshaw's theorem.
The digital ion trap (DIT) is an quadrupole ion trap driven by digital signals, typically in a rectangular waveform, generated by switching rapidly between discrete DC voltage levels. The digital ion trap has been mainly developed as a mass analyzer.
The first triple-quadrupole mass spectrometer was developed at Michigan State University by Christie Enke and graduate student Richard Yost in the late 1970s. [6] Quadrupoles can be used in hybrid mass spectrometers. For example, a sector instrument can be combined with a collision quadrupole and quadrupole mass analyzer to form a hybrid ...
A quadrupole electric field is displayed for reference, which oscillates at a given frequency . The blue line represents the ion path in the transversal (or radial) direction of a linear trap, while the orange line is the secular (slow) motion resulting from the ponderomotive force due to the electric field onto the ion.
A Thermo Finnigan LTQ (linear trap quadrupole) The linear ion trap (LIT) is a type of ion trap mass spectrometer. In a LIT, ions are confined radially by a two-dimensional radio frequency (RF) field, and axially by stopping potentials applied to end electrodes. LITs have high injection efficiencies and high ion storage capacities. [1]