Correlated vacancy migration below 200 k in neutron-irradiated iron |
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| Authors: | P. Hautojärvj A. Vehanen |
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| Affiliation: | Department of Technical Physics , Helsinki University of Technology , SF-02150 Espoo 15, Finland |
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| Abstract: | The increase of positron parameters in neutron-irradiated α-iron around 180 K is shown to be due to correlated vacancy migration within displacement cascades. Therefore the recent attempt to use positron annihilation in neutron-irradiated iron as an evidence for interstitial migration at stage III is internally inconsistent and incompatible with well-established experimental results. |
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