Total cross sections for electron capture at relativistic energies

Abstract

Total cross sections for the capture of electrons from the K shell of target atoms with atomic numbers Z_A=13, 29, 47 to the K shell of incident fully stripped ions with atomic numbers Z_B=6, 10, 18 having impact energies E=140, 250, 400, 1050 MeV amu^-1 are calculated by numerical integration using a relativistic form of the second Born approximation together with exact Dirac relativistic atomic wavefunction.