Positron Annihilation in Internally Oxidized Copper |
| M. Misheva Faculty of Physics, University of Sofia, 5 J. Bourchier blvd., 1126 Sofia, Bulgaria N. Nancheva Department of Physics, Technical University, Russe 7017, Bulgaria and N. Feschiev Department of Metal Science, Technical University, Russe 7017, Bulgaria |
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| The positron lifetimes in internally oxidized polycrystalline copper, annealed at different temperatures, were measured. It was found that the dispersed alumina particles act as positron traps. Estimation of concentration of defects was made in the frames of the trapping model. |
| DOI: 10.12693/APhysPolA.83.365 PACS numbers: 78.70.Bj |