Molecular effects observed in auger transitions from H + AND H 2+ collisions with solid, molecular and atomic targets

Abstract

The molecular effect is measured by the ratio R = Y A ( H 2 +) Y A ( H +) of H 2 +- and (1 MeV/u) H +-i For carbon foil surfaces R solid⩽1.3 resulting from the high energy region of the Auger peak, is caused mostly by the projectile electron interacting with the target atoms. In collisions with CH 4, C 4H 10 and Ar targets, R gas⩽ 0.75 is attributed to screeni under single collision conditions. The Auger line shapes and R values resulting from solid and gaseous targets are discussed.