MEASUREMENT OF DIELECTRONIC RECOMBINATION IN HE+ IONS

R.R. Haar, J.A. Tanis, V.L. Plano, K.E. Zaharakis, Bill Graham, J.R. Mowat, T. Ellison, W.W. Jacobs, T. Rinckel

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Abstract

Dielectronic recombination was investigated for He+, the simplest ion for which this process is possible. This work was done using the light-ion storage ring and electron cooler at the Indiana University Cyclotron Facility. Resonant recombination yields resulting from 1s +e- --> nln'l' transitions were observed with sufficient resolution (about 1 eV in the center of mass) to isolate and obtain cross sections for the 2s 2p 3P0 and 2p2 1D terms. The measured cross sections, integrated over the DELTAn = 1 2ln'l' states, agree in magnitude with theoretical calculations. Additionally, DELTAn = 2 dielectronic recombination events associated with 3ln'l' intermediate states were observed.
Original languageEnglish
Pages (from-to)R3472-R3475
Number of pages4
JournalPhysical Review A
Volume47
Publication statusPublished - 1993

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    Haar, R. R., Tanis, J. A., Plano, V. L., Zaharakis, K. E., Graham, B., Mowat, J. R., Ellison, T., Jacobs, W. W., & Rinckel, T. (1993). MEASUREMENT OF DIELECTRONIC RECOMBINATION IN HE+ IONS. Physical Review A, 47, R3472-R3475.