Combined computational and experimental study of Ar beam induced defect formation in graphite

Sharon K. Pregler, Tetsuichiro Hayakawa, Hisato Yasumatsu, Tamotsu Kondow, Susan B. Sinnott

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Irradiation of graphite, commonly used in nuclear power plants, is known to produce structural damage. Here, experimental and computational methods are used to study defect formation in graphite during Ar irradiation at incident energies of 50 eV. The experimental samples are analyzed with scanning tunneling microscopy to quantify the size distribution of the defects that form. The computational approach is classical molecular dynamic simulations that illustrate the mechanisms by which the defects are produced. The results indicate that defects in graphite grow in concentrated areas and are nucleated by the presence of existing defects.

Original languageEnglish (US)
Pages (from-to)240-248
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume262
Issue number2
DOIs
StatePublished - Sep 2007

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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