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Diagnostics of mixed van der Waals clusters

  • E. Fort
  • F. Pradère
  • A. De Martino
  • H. Vach
  • M. Châtelet

Abstract:

We present two complementary techniques that provide detailed diagnostics of supersonic beams involving several species. First, surface scattering, together with quadrupole mass spectrometer detection, yields the monomer percentage for each species within the beam. Second, analyses of beam profiles for different masses after scattering by a buffer gas permit determination of mixed cluster presence and, if any, of cluster sizes and compositions. The two techniques are applied to supersonic expansions of an argon-nitrogen mixture. We discuss the results that provide new insight in binary nucleation processes.

PACS. 36.40.-c Atomic and molecular clusters 

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Copyright information

© EDP Sciences, Springer-Verlag 1998

Authors and Affiliations

  • E. Fort
    • 1
  • F. Pradère
    • 1
  • A. De Martino
    • 1
  • H. Vach
    • 1
  • M. Châtelet
    • 1
  1. 1.Laboratoire d'Optique Quantique du CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex, FranceFR

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