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Pre-implantation and pre-annealing effects on deuterium retention in tungsten

Funded under: FP7-EURATOM

Abstract

Ion-driven deuterium retention in polycrystalline tungsten has been studied by thermodesorption spectroscopy as a function of the pre-implantation and pre-annealing treatments. Two kinds of tungsten samples were implanted by deuterium ions: (i) as-received W and (ii) re-crystallized W. Higher deuterium retention has been found for as-received W compared to re-crystallized. Pre-implantation by deuterium ions with intermediate TDS increases the deuterium retention. An increase of the deuterium retention with temperature at relatively high fluences was observed. The possible mechanisms of this behavior are discussed.

Additional information

Authors: OGORODNIKOVA O V, Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, Garching (DE);ROTH J, Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, Garching (DE);MAYER M, Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, Garching (DE)
Bibliographic Reference: An article published in: Fusion Engineering and Design, Article in Press, Corrected Proof (2007)
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/doi:10.1016/j.jnucmat.2007.06.003
Record Number: 200719341 / Last updated on: 2007-09-06
Category: PUBLICATION
Original language: en
Available languages: en
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