Damage in graphite tiles irradiated with helium plasmas

H. S. Kim, S. K. Lee, Y. G. Ohn, S. J. Noh, J. J. Kweon, J. K. Park, Cheol Eui Lee, H. J. Woo, S. J. Park, K. S. Chung

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Plasma-facing materials in fusion devices are irradiated by a high particle flux from a dense plasma. Graphite tiles, widely used as plasma-facing materials, were irradiated with a helium plasma of a high flux and low energy; the damage in the graphite-tile target was investigated. Changes in the surface morphology were observed from scanning electron microscopy; the electrical conductivity was decreased from four-probe measurement; the intensity of the graphite disorder peak was increased from Raman spectroscopy.

Original languageEnglish
Pages (from-to)832-834
Number of pages3
JournalJournal of the Korean Physical Society
Volume61
Issue number5
DOIs
Publication statusPublished - 2012

Keywords

  • Graphite tile
  • Helium plasma
  • Plasma-facing material
  • Radiation-enhanced sublimation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kim, H. S., Lee, S. K., Ohn, Y. G., Noh, S. J., Kweon, J. J., Park, J. K., Lee, C. E., Woo, H. J., Park, S. J., & Chung, K. S. (2012). Damage in graphite tiles irradiated with helium plasmas. Journal of the Korean Physical Society, 61(5), 832-834. https://doi.org/10.3938/jkps.61.832