Effect of displacement cascades on small helium bubbles in aluminum and gold

S. E. Donnelly, R. C. Birtcher, C. Templier, R. Valizadeh, V. Vishnyakov

Research output: Contribution to journalConference article

3 Citations (Scopus)


The evolution of individual helium bubbles in thin foils of gold and aluminum irradiated with 400 keV Ar+ and 200 keV Xe+ has been followed with in-situ transmission electron microscopy for a comparison between the effects of dilute (Al) and dense (Au) collision cascades. Bubble shrinkage in Al has been attributed to direct displacement of the gas out of the bubbles. Effects in Au, include the disappearance and Brownian motion of bubbles under irradiation, and are consistent with thermal spike processes seen in molecular dynamics simulations.

Original languageEnglish
Pages (from-to)243-248
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Publication statusPublished - 1995
Externally publishedYes
EventMaterials Research Society Fall Meeting - Boston, United States
Duration: 28 Nov 199430 Nov 1994


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