RECOMBINATION RATE COEFFICIENTS OF BORON-LIKE Ne

Recombination of Ne super(5+) was measured in a merged-beam type experiment at the heavy-ion storage ring CRYRING. In the collision energy range 0-110 eV resonances due to 2s super(2)2p arrow right 2s2p super(2) ( Delta n = 0) and 2s super(2)2p arrow right 2s super(2)3l ( Delta n = 1), core excitations were observed. The experimentally derived rate coefficients agree well with the calculations obtained using AUTOSTRUCTURE. At low energies, recombination is dominated by resonances belonging to the spin-forbidden 2s2p super(2)( super(4)P sub(J))nl series. The energy-dependent rate coefficients were convoluted with a Maxwell-Boltzmann electron energy distribution to obtain plasma recombination rate coefficients. The data from the literature deviate from the measured results at low temperature.