Combined rf trap
Encyclopedia
A combined RF trap is a combination of a Quadrupole ion trap
(QIT, also called a Paul trap) and a Penning trap
. One of the main bottlenecks of a QIT is that it can confine only single-charged species or multiple species with similar masses. But in certain applications like antihydrogen
production it is important to confine two species of charged particles of widely varying masses. To achieve this objective, a uniform magnetic field is added in the axial direction of the QIT.
Quadrupole ion trap
A quadrupole ion trap exists in both linear and 3D varieties and refers to an ion trap that uses constant DC and radio frequency oscillating AC electric fields to trap ions. It is commonly used as a component of a mass spectrometer...
(QIT, also called a Paul trap) and a Penning trap
Penning trap
Penning traps are devices for the storage of charged particles using a homogeneous static magnetic field and a spatially inhomogeneous static electric field. This kind of trap is particularly well suited to precision measurements of properties of ions and stable subatomic particles which have...
. One of the main bottlenecks of a QIT is that it can confine only single-charged species or multiple species with similar masses. But in certain applications like antihydrogen
Antihydrogen
Antihydrogen is the antimatter counterpart of hydrogen. Whereas the common hydrogen atom is composed of an electron and proton, the antihydrogen atom is made up of a positron and antiproton...
production it is important to confine two species of charged particles of widely varying masses. To achieve this objective, a uniform magnetic field is added in the axial direction of the QIT.