Penning Trap

The charged particle trap, capable of holding electrons, positrons and antiprotons in a vacuum.

An illustration of a typical Penning Malmberg trap. Voltages are applied to the two outer electrodes, forming a potential well. (Figure from Charlton et. al, “Antihydrogen for precision tests in Physics” 2008.)

A photo of the edge of the electrode stack

An illustration of a typical Penning Malmberg trap. Voltages are applied to the two outer electrodes, forming a potential well. (Figure from Charlton et. al, “Antihydrogen for precision tests in Physics” 2008.)

A photo of the edge of the electrode stack