Combined RF trap
||This article provides insufficient context for those unfamiliar with the subject. (October 2009)|
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.