Conference paper

Publication year: 2001

Pages: 391-394

Journal: Physica Scripta

Volume number: T92

ISSN: 0031-8949

DOI Link: https://doi.org/10.1238/Physica.Topical.092a00391

Conference: 10th International Conference on the Physics of Highly Charged Ions (HCI 2000)

Publisher: IOP Publishing

Abstract: 
Within a series of systematic measurements of the dielectronic recombination (DR) of Lithiumlike ions in the presence of external fields we have determined the absolute recombination rates of Ti19+ and Ni25+ ions. In both cases the electron energy range covers all DR resonances attached to 2s --> 2p(1/2) and 2s --> 2P(3/2) Deltan = 0 core excitations. The experimental resolution permits the study of the field effects for the two 2p(j)nl series of Rydberg DR resonances separately. For both the Ti19+ and the Ni25+ ions the electric field induced enhancement is by factors of up to 1.8 stronger for the 2P(3/2) series than for the 2p(1/2) series. Moreover, we find that the magnitude of the field induced DR rate enhancement becomes smaller as the nuclear charge increases. The dependence of the DR rate coefficient on magnetic fields in an E x B field configuration, that was only recently established by theory and experiment, is also found for Ti19+ whereas for Ni25+ a change of the magnetic field over the range 42-80 mT did not significantly influence the DR rate enhancement induced by the electric field.

Harvard Citation style: Schippers, S., Bartsch, T., Böhm, S., Gwinner, G., Schwalm, D., Wolf, A., et al. (2001) Field Enhanced Dielectronic Recombination of Lithiumlike Ti19+ and Ni25+ Ions, Physica Scripta, T92, pp. 391-394. https://doi.org/10.1238/Physica.Topical.092a00391

APA Citation style: Schippers, S., Bartsch, T., Böhm, S., Gwinner, G., Schwalm, D., Wolf, A., Phaneuf, R., Schuch, R., & Müller, A. (2001). Field Enhanced Dielectronic Recombination of Lithiumlike Ti19+ and Ni25+ Ions. Physica Scripta. T92, 391-394. https://doi.org/10.1238/Physica.Topical.092a00391