Positron annihilation in disordered binary alloys

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Abstract
Measurements of the concentration dependence of the form of the long slit angular distributions for solid solutions of the PbIn, MgIn, CuAl and CuNi alloy systems are reported. A simple theoretical model provides an interpretation of the results in terms of the spatial distribution of positron and electron density within the alloy, and suggests a basis for the qualitative prediction of positron behaviour in any alloy system.