The Field Emission Electron Distribution Spectrometer is designed to determine the energy distribution of an electron emitter, e.g. a tip cathode for laser assisted field emission. The energy analyzer is to be installed into a suitable vacuum chamber. CF38 (2.75” OD) multiple feedthroughs are used for the electrical connection. The analyzer is equipped with a µ metal shielding.
The extraction field is defined by the potential difference between the tip and the first electrode of the analyzer. The potential difference is a maximum of 2000 V.
The potential of the electron emitter can be set as follows
- Low potential setup (LPS): the potential of the electron emitter is near the ground potential
- High potential setup (HPS): the potential of the electron emitter is max. -2000 V
The detection of electrons is carried out using a channeltron (CEM) or chevron MCP detector with metal anode (DMCP), or a photo multiplier.
- Energy range: up to 2000 eV
- Energy resolution : better 100 meV