Non-radioactive electron sources for fast high sensitive sensor systems
|Förderung durch:||This work is supported by the German Federal Ministry of Education and Research (BMBF) under the grant 13N12820.|
Most ion mobility spectrometers (IMS) employ a radioactive β-source to ionize the target analytes. However, because of the potential hazards and the associated handling restrictions regarding radioactive materials non-radioactive ionization sources are of increasing importance.
The aim of this research project is the development of non-radioactive electron sources, which are used both in ion mobility spectrometry for ionization as well as in other sensor systems. Here, one advantage is that non-radioactive electron sources generate identical ion species as radioactive electron sources.
A further advantage of non-radioactive electron sources is the controllability of the electron emission and hence the ionization process and the consequent opportunity to develop completely new sensor principles.