Lifetimes of Excited Levels in MgIII, CaIII, KIV–V, CaV, and Ge I

Abstract
Radiative lifetimes of excited levels in Mg III, Ca III, K IV, K V, Ca V, and Ge I have been measured by means of the beam-foil technique in order to test the validity of recent theoretical methods to calculate lifetimes for heavier atoms and ions. Good agreement with theoretical lifetimes is obtained.