Craters produced on metals by single ion impacts.

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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 gm/cm{sup 3}. 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 ... continued below

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9 p.

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Birtcher, R. C. December 23, 1998.

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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 gm/cm{sup 3}. 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.

Physical Description

9 p.

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INIS; OSTI as DE00011027

Medium: P; Size: 9 pages

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  • Materials Research Society 1998 Fall Meeting, Boston, MA (US), 11/30/1998--12/04/1998

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  • Report No.: ANL/MSD/CP-96878
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 11027
  • Archival Resource Key: ark:/67531/metadc619630

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  • December 23, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 7:32 p.m.

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Birtcher, R. C. Craters produced on metals by single ion impacts., article, December 23, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc619630/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.