G. N. Makarov, A. N. Petin, “Universal probe method for measuring the temperature of large clusters (nanoparticles) in a cluster beam”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2009, Volume 90, Issue 10,Pages <nobr>712

This article is cited in 8 papers

ATOMS, SPECTRA, RADIATIONS

Universal probe method for measuring the temperature of large clusters (nanoparticles) in a cluster beam

G. N. Makarov^a, A. N. Petin^ba

^a Institute of Spectroscopy, Russian Academy of Sciences
^b Troitsk Institute for Innovation and Fusion Research

Abstract: A universal probe method for measuring the temperature of large clusters (nanoparticles) in a cluster beam has been proposed and experimentally implemented. The temperature of large van der Waals clusters (nanoparticles) (CO₂)_N (where N ≥ 10² is the number of monomers in a cluster) in the cluster beam is measured using this method with SF₆ molecules as miniature probe thermometers. The SF₆ molecules are captured by the (CO₂)_N clusters in intersecting cluster and molecular beams and sublimate from the surface of the clusters, carrying information on the velocity and temperature (internal energy) of the clusters. The velocity (kinetic energy) of SF₆ molecules sublimating from the surface of the clusters has been measured by the time-of-flight method and the temperature of the clusters has been determined as T _cl = (105 ± 15) K.

PACS: 33.80.-b, 36.40.-c, 37.20.+j, 42.62.Fi, 81.07.-b

Received: 20.10.2009