Spectroscopic study of plasma-facing graphite tiles modified by electron and proton irradiation

Jin Jung Kweon, Kyu Won Lee, Jun Kue Park, Gi Wan Jeon, Cheol Eui Lee, S. J. Noh, H. S. Kim

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We have carried out Raman, electron spin resonance (ESR), and X-ray photoemission (XPS) spectroscopy measurements on the graphite tiles modified by electron and proton irradiation. While increase in local order was observed in the electron-irradiated sample, structural disorder and amorphization were revealed in the proton-irradiated sample, with much reduced electrical conductivity. Besides, a narrow ESR peak attributed to localized spins, closely associated with C-OH bonds as identified by the XPS measurements, was detected in the proton-irradiated sample.

Original languageEnglish
Pages (from-to)145-147
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Publication statusPublished - 2012 Mar 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (Project No. 20090082672).


  • Carbon-based plasma-facing material
  • Electron irradiation
  • Graphite tile
  • Proton irradiation
  • Spectroscopy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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