Craters Produced on Metals by Single Ion Impacts

R. C. Birtcher, S. E. Donnelly

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Single ion impacts have been observed using in-situ transmission electron microscopy during irradiation. In addition to internal defects, single-ion impacts create surface craters as large as 12 nm on In, Ag, Pb and Au. Crater formation rates have been determined from video recordings with a time-resolution of 33 milliseconds. The cratering rate for Xe ions increases linearly with increasing target mass density above a threshold density of approximately 7 g/cm3. The cratering rate increases as the ion mass is increased. These results suggest that cratering requires a high energy-density, near-surface displacement cascade. TRIM calculations have been made in an effort to establish a near-surface energy-density criterion for cratering.

Original languageEnglish
Pages (from-to)579-584
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Publication statusPublished - 1 Dec 1998
Externally publishedYes
Event1998 MRS Fall Meeting: Symposium N / Microstructural Processes in Irradiated Materials - Boston, United States
Duration: 30 Nov 19983 Dec 1998


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