Tsybin, Youri O.Baykut, Gokhan2006-11-092006-11-092006-11-092003https://infoscience.epfl.ch/handle/20.500.14299/235490The present invention relates to a method and a device for irradiating ions in a ion cyclotron resonance (ICR) trap with photons and/or electrons. For electron irradn. a hollow electron emitter is used, through the hole of which a light beam can be sent into the ICR trap. The emitter generates a hollow, tubular electron beam. In a special application low energy ions within the tubular electron beam are irradiated with photons. The ions can be cyclotron-excited mass selectively, by which they enter the electron beam and interact with electrons. [on SciFinder (R)]ion cyclotron resonance trap with photon electron irradnpatentEP0310888JPH0459747DE3733853US4924089EP0310888JPH01163954DE3733853EP03108886337779