Conference paper

Publication year: 1997

Pages: 167-175

Journal: Hyperfine Interactions

Volume number: 108

Issue number: 1-3

ISSN: 0304-3843

eISSN: 1572-9540

DOI Link: https://doi.org/10.1023/A:1012698310084

Conference: 2nd Euroconference on Atomic Physics with Stored Highly Charged Ions

Publisher: Springer

Abstract: 
Recombination of multiply charged ions with electrons at very low relative energies has become a major topic of interest, due to the observation of rates which are enhanced beyond the expectations for radiative recombination. We present results for Ar16+ and Ar18+ ions from systematic measurements along the argon isonuclear sequence using a high density cold electron beam target (n(e) = 7 x 10(9) cm(-3)) at the UNILAC of GSI. The transverse and longitudinal temperatures of the electron beam were determined from DR resonance features observed with metastable Ar16+(2(3)S) ions, The rate at E-rel = 0 for radiative recombination of completely stripped Ar18+ calculated with electron beam temperatures kT(parallel to) = 0.002 eV, kT(perpendicular to) = 0.2 eV amounts to alpha = 10(-9) cm(3) s(-1). This is exceeded by nearly a factor of 10 by the rate measured in experiments with Ar18+ ions.

Harvard Citation style: Uwira, O., Muller, A., Spies, W., Frank, A., Linkemann, J., Brandau, C., et al. (1997) Recombination measurements at low energies with Ar16+ and Ar18+ ions in a dense, cold electron target, Hyperfine Interactions, 108(1-3), pp. 167-175. https://doi.org/10.1023/A:1012698310084

APA Citation style: Uwira, O., Muller, A., Spies, W., Frank, A., Linkemann, J., Brandau, C., Cramer, T., Kozhuharov, C., Klabunde, J., Angert, N., Mokler, P., Becker, R., Kleinod, M., & Badnell, N. (1997). Recombination measurements at low energies with Ar16+ and Ar18+ ions in a dense, cold electron target. Hyperfine Interactions. 108(1-3), 167-175. https://doi.org/10.1023/A:1012698310084