The weakest bond: Experimental observation of helium dimer

15 February 1993

journal article
Published by AIP Publishing in The Journal of Chemical Physics

Vol. 98 (4) , 3564-3567
https://doi.org/10.1063/1.464079

Abstract

Helium dimer ion was observed after electron impact ionization of a supersonic expansion of helium with translational temperature near 1 mK. The dependence of the ion signal on source pressure, distance from the source, and electron kinetic energy was measured. The signal was determined to arise from ionization of neutral helium dimer.

Keywords

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