The Influence of Magnetic Field on Annihilation of Positrons in Corroded Steel St-20
R. Pietrzak, R. Szatanik and A. Jaworska
Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland
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Received: 5 06 2006;
The positron lifetime in steel St-20 were determined before and following corrosion in HCl vapors. The influence of external magnetic field and remanent magnetization state on the parameters of the positron lifetime spectrum in the steel were investigated. It was found that the presence of magnetic field causes a decrease in the intensity of the component connected with annihilation of positrons in the close-to-the-surface lattice defects.
DOI: 10.12693/APhysPolA.110.677
PACS numbers: 78.70.Bj, 61.72 Cc, 82.45.Bb