Patent ID: 8921770
Filing Date: 2014-12-30
Classification: H01J

Abstract:
1. An assembly of a first RF component and a second RF component in a mass spectrometer, the first RF component comprising a first set of electrodes and the second RF component comprising a second set of electrodes, wherein the RF components are located and aligned end-to-end to one another, and wherein a transverse dimension of the electrodes of the first set is smaller than that of the electrodes of the second set, the assembly further comprising a conductive electric field screen located at a radial outer periphery of the first set of electrodes and facing the electrodes of the second set such that it poses substantially no geometric restriction on a space between end-faces of the first and second set of electrodes, as to reduce RF electric field cross-talk between the electrodes of the first set and those of the second set.