Detection of positron implantation profile in different materials

The objective of this paper is experimental studies of the linear absorption coefficient, or mean penetration depth of positrons emitted from 22Na isotope in different materials. For this purpose we constructed a new experimental setup which allows us to scan the depth implantation profile of positrons. For the studied metals: Mg, Al, the obtained values of mean penetration depth coincide well with those which can be calculated using the mathematical formula commonly used but for Si and S the discrepancy has been observed similarly like for polymers. (author)