Abstract
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 language | English |
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Pages (from-to) | 145-147 |
Number of pages | 3 |
Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
Volume | 274 |
DOIs | |
Publication status | Published - 2012 Mar 1 |
Keywords
- Carbon-based plasma-facing material
- Electron irradiation
- Graphite tile
- Proton irradiation
- Spectroscopy
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation