Deuterium retention in tungsten in dependence of the surface conditions

Ogorodnikova, O. V.; Roth, J.; Mayer, M.

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Deuterium retention in tungsten in dependence of the surface conditions

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Ogorodnikova, O. V.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Roth, J.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Mayer, M.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Zitation

Ogorodnikova, O. V., Roth, J., & Mayer, M. (2003). Deuterium retention in tungsten in dependence of the surface conditions. Journal of Nuclear Materials, 313-316, 469-477. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TXN-47S6V9G-4-3G&_cdi=5595&_orig=browse&_coverDate=03%2F31%2F2003&_sk=996869999&view=c&wchp=dGLbVtz-zSkWA&_acct=C000007558&_version=1&_userid=100196&md5=ce6d7a2193b5de16381ccc9114fb2ff2&ie=f.pdf.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0027-3D4F-A

Zusammenfassung

The paper reviews hydrogen isotope retention and migration in tungsten (W). Due to a large scatter of the deuterium (D) retention database, new measurements of ion-driven D retention in polycrystalline W foil have been performed to clarify the mechanism of hydrogen isotope inventory in W. Deuterium retention has been investigated as a function of ion fluence, implantation temperature, incident energy and surface conditions. Special attention has been given on the investigation of D retention in thin films of tungsten carbide and tungsten oxide which can be formed on W surface in a fusion device. Such kinds of films increase the D retention in W. Several points are reviewed: (i) inventory in pure W, (ii) inventory in W pre-implanted by carbon ions and (iii) inventory in tungsten oxide.