Resumen
Ion deflector modulated by a radio frequency field. Ion guides or deflectors allow to transfer ions generated in a source to a mass spectrometer where the ion analysis is performed according to its mass. We describe a single instrument with low cost simple handling, capable of selecting the ions of a beam according to its energy and mass without having to reach a mass spectrometer for analysis. The device comprises two cylindrical electrodes whose difference between the spokes is kept constant. A constant electric field is connected between the two electrodes and another radiofrequency field is superimposed. Said device is designed to select ions from a beam, according to their kinetic energy and their mass located between an ion source and a detector, avoiding the use of mass or flight time spectrometers that are expensive and sophisticated devices. (Machine-translation by Google Translate, not legally binding)