Systematic studies on hydrogen cluster beam production
Institut für Kernphysik, Westfälische Wilhelms-Universität,
48149 Münster, Germany
Accepted: 16 October 1998
Published online: 15 February 1999
We present systematic studies on the absolute density of hydrogen cluster beams produced by using Laval-nozzles. Measurements of the cluster beam density as function of the nozzle temperature and the gas input pressure result in maximum cluster beam densities for cases where the gas is already in a supersaturated state before passing the nozzle. The influence of the gas flow through the nozzle on the starting temperature of clustering and the temperature dependence of the cluster beam density at constant gas flows are studied.
PACS: 36.40.-c – Atomic and molecular clusters / 36.40.Qv – Stability and fragmentation of clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999