Multi functional ion detector with multi channel plates

Dr. D. Ioanoviciu, Ing. N.Lupsa, ing. V.Bunea

National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, RO-400293, ROMANIA

Starting with the characteristics of a multi channel detector existing on the market (MCP24A/2) and form the desired parameters for an ion detector that is able to work with positive and negative ions, we designed and built it at INCDTIM. It is a mechanical project where the electric parts are important (undesired capacities, electrostatic shielding, leakage currents on the insulators` surface, etc. ). In order to eliminate the leakage currents at the ion collector through the insulator of the passing element from air to vacuum, a special vacuum feedthrough was designed. This element is at high potential so that a special shielded (coaxial) element was needed.