Deuterium bombardment of carbon and carbon layers on titanium

Klages, K. U.; Wiltner, A.; Luthin, J.; Linsmeier, C.

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Deuterium bombardment of carbon and carbon layers on titanium

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Wiltner, A.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Linsmeier, C.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Klages, K. U., Wiltner, A., Luthin, J., & Linsmeier, C. (2003). Deuterium bombardment of carbon and carbon layers on titanium. Journal of Nuclear Materials, 313-316, 56-61. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TXN-47P1XXT-P-13&_cdi=5595&_orig=browse&_coverDate=03%2F31%2F2003&_sk=996869999&view=c&wchp=dGLbVtz-zSkzV&_acct=C000007558&_version=1&_userid=100196&md5=514b0b4273780799fdf7d6c528816749&ie=f.pdf.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-3D4D-E

Abstract

Interaction of deuterium ions with highly oriented pyrolytic graphite and thin carbon layers on titanium are studied by X-ray photoelectron spectroscopy (XPS) measurements. The effects induced by the deuterium beam are compared to bombardment with chemically inert argon ions. XPS allows the identification of several carbon states: graphitic carbon, disordered graphitic carbon, ion-induced radiation defects in carbon, and carbidic carbon in the carbon films on titanium. Erosion of the carbon film by deuterium proceeds through two paths: first a chemical erosion with a cross-section of 4.7×10-17 cm2 removes elementary carbon. At the same time, carbidic carbon is eroded with a linear yield of 0.003 within the fluence range between 8×1016 and 1.4×1017 cm-2.