Cross Sections and Excitation Rate Coefficients for the 2s22p52P3/2-2s22p52P1/2 Transition in Fluorine-Like Ions by p,d,t and α Impact

Abstract

Cross sections and rate coefficients for excitation of the 2s22p52P3/2-2s22p52P1/2 transition in fluorine-like ions by proton, deuteron, triton, and α-particle impact have been calculated using the close-coupled impact parameter method. The ions considered are Ne II, S VIII, Ti XIV, Ni XX, Zn XXII, Ge XXIV, Se XXVI, Kr XXVIII, Mo XXXIV, Ag XXXIX, and Pb LXXIV. Cross sections were calculated for a range of impact energies, and the 2s2p62S State was included by means of a polarization potential. Excitation rate coefficients have been calculated from the cross sections for a wide range of temperatures.