Scattering of Atomic Hydrogen from the Surface of Liquid Helium Films

  • J. T. M. Walraven
Part of the NATO ASI Series book series (NSSB, volume 257)


Liquid helium covered surfaces are indispensable in experiments with atomic hydrogen gas (H) at low temperature (T ≲ 1 K). Helium is used because H does not dissolve in this liquid, it is chemically inert and offers the weakest concievable atom-surface interation to the H atoms. These properties enable confinement of H gas while surface adsorption is unimportant except at the lowest temperatures. Therefore helium films are very effective in supressing massive surface catalized recombination in which solid molecular hydrogen is formed.


Adsorption Energy Accommodation Coefficient Helium Surface Sticking Probability Buffer Volume 
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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • J. T. M. Walraven
    • 1
  1. 1.Van der Waals laboratoriumUniversiteit van AmsterdamAmsterdamThe Netherlands

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