Electron capture and loss for 2.5-200-MeV 16S

Abstract

Electron capture and loss cross sections have been measured for highly charged (q=13+) sulfur ions with energies 2.5--200 MeV colliding with helium. Electron capture varies by nearly six orders of magnitude over the energy range investigated, while electron loss varies by only about a factor of 2. The capture cross sections are in reasonable agreement with classical and empirical scaling rules, while the loss cross sections agree well with the plane-wave Born approximation.