Positron trapping at ideal and defected metal surfaces

Calculation of the Lifetime of Slow Positrons at Metal Surfaces

“…Employing (16) to (20) the positron lifetime as a function of temperature has been calculated for the metal surfaces A1(100), A1(110), and Al(111). Most of the parameters used in these calculations are taken from [8,9] except certain constants which have been adjusted to give good results.…”