| 摘要 |
FIELD: physics. ^ SUBSTANCE: invention relates to mass-spectrometry based on movement of charged particles in two-dimensional linear high-frequency electric fields, and can be used to improve design of mass analysers and improve analytical and commercial characteristics thereof. The device for generating such fields has flat electrodes with potential distribution which is discrete and linear on one coordinate. In order to improve the design and system for high-frequency powering analysers, electric fields which are linear on two coordinates are generated using two discrete electrodes made from thin metal filaments with opposite potential and three continuous earthed electrodes. The required field in the working area of the analyser is generated through non-uniform distribution of coordinates of the filaments in planes of the discrete electrodes, where charges on the electrodes along one of the axis are distributed according to a discrete linear law. ^ EFFECT: improved design of analysers with two-dimensional linear electric fields, enabling their use in making energy and mass analysers. ^ 2 cl, 1 dwg |
