Abstract
A method based upon the tandem use of the Time-Of-Flight and Surface-Induced-Dissociation techniques is proposed for estimating the average cluster size in a neutral molecular beam. It consists of sending the beam through a buffer gas and measuring the variations of the average beam velocity as a function of the buffer gas pressure. The clusters are detected at the mass of the monomer by surface induced dissociation in the ionization source. This method has been applied to an argon cluster beam and the results are in good agreement with determinations using high energy electron diffraction. This technique appears to be a simple alternative for estimating mean cluster sizes in the range of 100 to a few 1000 monomers.
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Cuvellier, J., Meynadier, P., de Pujo, P. et al. A simple method to determine the mean cluster size in a molecular beam. Z Phys D - Atoms, Molecules and Clusters 21, 265–269 (1991). https://doi.org/10.1007/BF01426384
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DOI: https://doi.org/10.1007/BF01426384