POSSIBLE APPLICATIONS OF AN EXTERNAL RESONANT CIRCUIT IN FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE

The narrow-band cooling of ion motion in the trap of a Fourier transfo rm ion cyclotron resonance mass spectrometer (FTICR) using an external parallel resonant circuit is considered. The parameters of the circui t necessary for effective cooling of both axial and cyclotron ion moti on are estimated. It is shown that the use of a resonant circuit may b e helpful in studying the highly charged heavy ions produced in experi ments with electrospray ionization combined with FTICR.