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Positron lifetime measurements on electron irradiation damage in amorphous Pd80Si20 and Cu50Ti50 alloys |
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| Authors: | J Yli-Kauppila P Moser H Kiinzi P Hautojdrvi |
| Institution: | (1) Centre d'Etudes Nucléaires de Grenoble, Département de Recherche Fondamentale, Section de Physique du Solide, 85 X, F-38041 Grenoble Cedex, France;(2) Present address: Laboratory of Physics, Helsinki University of Technology, SF-02150 Espoo 15, Finland;(3) Present address: Institut für Physik, Universität Basel, CH-4056 Basel, Schweiz |
| Abstract: | Positron lifetime measurements were performed on amorphous Pd80Si20 and Cu50Ti50 alloys irradiated with 3MeV electrons at 20K. The irradiation was found to increase the mean positron lifetime in both specimens indicating the presence of vacancy-like radiation damage. Isochronal annealing between 77 K and 300 K resulted in a continuous reduction of the positron lifetime, which suggests a gradual recovery of the irradiation induced defects. |
| Keywords: | 61 40 61 80 78 70 |
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