SIMULATION STUDIES OF COLLISION CASCADES IN LIQUID IN TARGETS.

D. Y. Lo, M. H. Shapiro, T. A. Tombrello, B. J. Garrison, N. Winograd

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Multiple interaction computer simulations have been used to determine the properties of collision cascades in liquid in targets induced by normally incident 5 keV Ar** plus ions. Below the first atomic layer the cascade becomes Thompson-like relatively quickly. However, within the first atomic layer the angular distribution of moving atoms became forward peaked by 150 fs and remained so until approximately 300 fs. Energy and angle resolved (EARN) spectra were calculated for the ejected atoms. The peak of the energy distribution shifted to lower energies at larger ejection angles, and the angular distributions became broader for lower energy particles. Both results agree with recent experimental data, and with a simple model proposed by Garrison. Results suggest that the detailed structure of the surface layer is very important in the sputtering process.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposia Proceedings
EditorsMichael O. Thompson, S.Thomas Picraux, James S. Williams
PublisherMaterials Research Soc
Pages449-456
Number of pages8
ISBN (Print)0931837405
StatePublished - Dec 1 1987
EventBeam-Solid Interact and Transient Processes - Boston, MA, USA
Duration: Dec 1 1986Dec 4 1986

Publication series

NameMaterials Research Society Symposia Proceedings
Volume74
ISSN (Print)0272-9172

Other

OtherBeam-Solid Interact and Transient Processes
CityBoston, MA, USA
Period12/1/8612/4/86

Fingerprint

Cascades (fluid mechanics)
Angular distribution
Atoms
Liquids
Sputtering
Ions
Computer simulation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Lo, D. Y., Shapiro, M. H., Tombrello, T. A., Garrison, B. J., & Winograd, N. (1987). SIMULATION STUDIES OF COLLISION CASCADES IN LIQUID IN TARGETS. In M. O. Thompson, S. T. Picraux, & J. S. Williams (Eds.), Materials Research Society Symposia Proceedings (pp. 449-456). (Materials Research Society Symposia Proceedings; Vol. 74). Materials Research Soc.
Lo, D. Y. ; Shapiro, M. H. ; Tombrello, T. A. ; Garrison, B. J. ; Winograd, N. / SIMULATION STUDIES OF COLLISION CASCADES IN LIQUID IN TARGETS. Materials Research Society Symposia Proceedings. editor / Michael O. Thompson ; S.Thomas Picraux ; James S. Williams. Materials Research Soc, 1987. pp. 449-456 (Materials Research Society Symposia Proceedings).
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abstract = "Multiple interaction computer simulations have been used to determine the properties of collision cascades in liquid in targets induced by normally incident 5 keV Ar** plus ions. Below the first atomic layer the cascade becomes Thompson-like relatively quickly. However, within the first atomic layer the angular distribution of moving atoms became forward peaked by 150 fs and remained so until approximately 300 fs. Energy and angle resolved (EARN) spectra were calculated for the ejected atoms. The peak of the energy distribution shifted to lower energies at larger ejection angles, and the angular distributions became broader for lower energy particles. Both results agree with recent experimental data, and with a simple model proposed by Garrison. Results suggest that the detailed structure of the surface layer is very important in the sputtering process.",
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Lo, DY, Shapiro, MH, Tombrello, TA, Garrison, BJ & Winograd, N 1987, SIMULATION STUDIES OF COLLISION CASCADES IN LIQUID IN TARGETS. in MO Thompson, ST Picraux & JS Williams (eds), Materials Research Society Symposia Proceedings. Materials Research Society Symposia Proceedings, vol. 74, Materials Research Soc, pp. 449-456, Beam-Solid Interact and Transient Processes, Boston, MA, USA, 12/1/86.

SIMULATION STUDIES OF COLLISION CASCADES IN LIQUID IN TARGETS. / Lo, D. Y.; Shapiro, M. H.; Tombrello, T. A.; Garrison, B. J.; Winograd, N.

Materials Research Society Symposia Proceedings. ed. / Michael O. Thompson; S.Thomas Picraux; James S. Williams. Materials Research Soc, 1987. p. 449-456 (Materials Research Society Symposia Proceedings; Vol. 74).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Lo DY, Shapiro MH, Tombrello TA, Garrison BJ, Winograd N. SIMULATION STUDIES OF COLLISION CASCADES IN LIQUID IN TARGETS. In Thompson MO, Picraux ST, Williams JS, editors, Materials Research Society Symposia Proceedings. Materials Research Soc. 1987. p. 449-456. (Materials Research Society Symposia Proceedings).