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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} cm{2} removes elementary carbon. At the same time, carbidic carbon is eroded with a linear yield of 0.003 within the fluence range between 8×10{16} and 1.4×10{17} cm{-2}.

Additional information

Authors: KLAGES K U ET AL, Max-Planck-Institut für Plasmaphysik, EURATOM Association, Garching (DE)
Bibliographic Reference: An article published in: Journal of Nuclear Materials, Volumes 313-316, March 2003, Pages 56-61
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1016/S0022-3115%2802%2901332-6
Record Number: 200316349 / Last updated on: 2003-06-17
Category: PUBLICATION
Original language: en
Available languages: en