Electronic time-of-flight mass spectrometer and separator for metal clusters

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Abstract
In order to develop a basis for metal cluster research, an electronic time-of-flight mass spectrometer and separator has been built. The spectrometer is combined with a high-temperature cell for metal clusters. The ionisation is performed by a pulsed electron source. Ions, accelerated to 2 keV, are mass separated by time of flight in a 1.7 m drift section and are post-accelerated to 7 keV for detection. From the cluster pulse unique masses can be selected by a delayed electrostatic deflection system.