Conference paper

Publication year: 2003

Pages: 370-373

Journal: Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms

Volume number: 205

ISSN: 0168-583X

DOI Link: https://doi.org/10.1016/S0168-583X(03)00558-5

Conference: 11th International Conference on the Physics of Highly Charged Ions (HCI 2002)

Publisher: Elsevier

Abstract: 
Field-enhanced dielectronic recombination (DR) cross-sections differential in the main quantum number n have been measured for N4+ ions. The n-differential data were obtained at the heavy ion storage ring CRYRING by increasing the ion energy in two steps from 3 to 5 MeV/u and from 5 to 7.5 MeV/u. The accompanying increase of the magnetic field in the storage - ring dipole magnets leads to a decrease of the cutoff quantum number n(c) associated with the field ionization of intermediate N3+(1s(2)2p nl) states. By comparing measurements at two different ion energies the enhancement of DR due to electromagnetic fields is derived for the narrow bandwidths of Rydberg states n approximate to 17-21 and 19-24. The applied electric fields ranged from 0 to 300 V/cm. The observed enhancement was up to a factor of 1.9 for the bandwidth n approximate to 17-21 and up to 2.3 for the bandwidth n 19-24, respectively. (C) 2003 Elsevier Science B.V. All rights reserved.

Harvard Citation style: Böhm, S., Müller, A., Schippers, S., Shi, W., Danared, H., Eklöw, N., et al. (2003) Measurement of the field-induced dielectronic recombination rate enhancement of N4+ ions differential in the Rydberg quantum number n, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 205, pp. 370-373. https://doi.org/10.1016/S0168-583X(03)00558-5

APA Citation style: Böhm, S., Müller, A., Schippers, S., Shi, W., Danared, H., Eklöw, N., Fogel, M., Schuch, R., Djuric, N., Dunn, G., & MacAdam, K. (2003). Measurement of the field-induced dielectronic recombination rate enhancement of N4+ ions differential in the Rydberg quantum number n. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 205, 370-373. https://doi.org/10.1016/S0168-583X(03)00558-5