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2008 | 113 | 5 | 1293-1299
Article title

Hydrogen Interaction with Vacancies in Electron Irradiated Niobium

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EN
Abstracts
EN
Defect studies of Nb irradiated with 10 MeV electrons were performed in the present work by means of positron annihilation spectroscopy. The lattice defects were characterized by positron lifetime spectroscopy. Moreover, defect depth profiles were studied by slow positron implantation spectroscopy. The experimental investigations were accompanied by first principles theoretical calculations of positron parameters. It was found that irradiation-induced vacancies in Nb specimens are surrounded by H, which causes a shortening of the lifetime of trapped positrons. The influence of a Pd and Cr over-layer on the H concentration in the Nb specimens was examined.
Keywords
EN
Contributors
author
  • Faculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, Praha 8, CZ-180 00, Czech Republic
author
  • Faculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, Praha 8, CZ-180 00, Czech Republic
author
  • Institut fűr Ionenstrahlphysik und Materialforschung, Forschungszentrum Dresden-Rossendorf, Postfach 510119, D-01314, Dresden, Germany
author
  • Institut fűr Ionenstrahlphysik und Materialforschung, Forschungszentrum Dresden-Rossendorf, Postfach 510119, D-01314, Dresden, Germany
author
  • Institut fűr Materialphysik, Universität Göttingen, Friedrich-Hund-Platz 1, D-37077, Göttingen, Germany
author
  • Institut fűr Materialphysik, Universität Göttingen, Friedrich-Hund-Platz 1, D-37077, Göttingen, Germany
author
  • Institut fűr Materialphysik, Universität Göttingen, Friedrich-Hund-Platz 1, D-37077, Göttingen, Germany
author
  • Institut fűr Materialphysik, Universität Göttingen, Friedrich-Hund-Platz 1, D-37077, Göttingen, Germany
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n504kz
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