Positron-annihilation studies of voids in neutron-irradiated aluminum single crystals
- 15 April 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 9 (8), 3321-3324
- https://doi.org/10.1103/physrevb.9.3321
Abstract
We have measured the angular correlation of positron-annihilation radiation from single crystals of aluminum in which voids had been induced by neutron irradiation. The angular-correlation curve is narrower than that for aluminum containing vacancies. The data fit well a curve computed on the assumption that the positrons are annihilated at the void surfaces. After the sample was heated to 325°C the angular-correlation curve became identical to that of normal Al.Keywords
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