Ejection of positive cluster ions from large electron-bombarded /sup 3/He or /sup 4/He clusters
Journal Article
·
· J. Low Temp. Phys.; (United States)
Electron bombardment of freely flying helium clusters of some 10/sup 5/--10/sup 7/ atoms is observed to yield positive cluster ions of about 68 /sup 4/He atoms or 85 /sup 3/He atoms, respectively, aside from ionized clusters of about the original size. The ejection of the small cluster ions from the surface of the large clusters is ascribed to the release of energy resulting from the electrostrictive polarization of the vicinity of a newly formed ion. The observed final sizes of the small cluster ions are found to agree with those following from a macroscopic charged droplet model.
- Research Organization:
- Institut fuer Kernverfahrenstechnik der Universitaet und des Kernforschungszentrums Karlsruhe, Karlsruhe, Federal Republic of Germany
- OSTI ID:
- 5848750
- Journal Information:
- J. Low Temp. Phys.; (United States), Vol. 45:3
- Country of Publication:
- United States
- Language:
- English
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