A Molecular Beam Source for Electron Spectroscopy of Clusters.

We describe the construction and testing of a supersonic jet apparatus to carry out electron spectroscopy on Van-der-Waals clusters using Synchrotron Radiation as an excitation source. The cluster source works with a conical nozzle that can be cooled with LHe as well as with LN2. The system has been optimized for mechanical and thermal stability, for low residual magnetic fields and is of a compact design. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]