Difference in stopping cross section factor for 4He ions between polycrystalline diamond and glassy carbon

Katsumi Takahiro, Kiyoshi Kawatsura, Bun Tsuchiya, Shinji Nagata

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In order to study the allotropic effect on a stopping cross section of carbon, the difference in stopping cross section factors [ε] between polycrystalline diamond and glassy carbon (GC) has been estimated for 4He ions at the incident energies of 1.4-4.0 MeV by backscattering spectrometry. Thin Ag films (∼90 nm) were deposited onto the carbon targets to monitor the backscattering yields of Ag during the measurements. The relative stopping cross section factors [ε]GC/[ε]diamond can be determined from the backscattering C yields normalized by the Ag yields. The stopping cross section factors of glassy carbon [ε]GC are found to be higher by 4-5% than those of polycrystalline diamond [ε]diamond for all incident energies examined.

Original languageEnglish
Pages (from-to)43-46
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume249
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Aug 1

Keywords

  • Diamond
  • Glassy carbon
  • He ion
  • Stopping cross section factor

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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