HIGH-MASS RESOLUTION WITH MAGNETIC-FIELD APPLIED IN PAULS TRAP

In this paper the Paul's trap placed in a homogeneous static magnetic field is presented. The motion of ions in such system is investigated. It is shown that such system can work in two regimes: as a mass-spect rometer and as a device which separates a particle beam depending on t he mass and specific charge. An application of the external static mag netic field gives a possibility to work for a new set of parameters of the system which was not available before. Apart from that the sensit ivity of the device is improved.