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Influence of electromagnetic fields on the dielectronic recombination of Ne7+ ions
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2001 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, Vol. 64, no 3, 032707/1-032707/7 p.Article in journal (Refereed) Published
Abstract [en]

The influence of crossed electric and magnetic fields on dielectronic recombination of Ne7+ ions has been measured at the Stockholm heavy-ion storage ring CRYRING. The electron energy range covered all dielectronic recombination resonances attached to 2s-2p1/2 and 2s-2p3/2 core excitations. Two sets of measurements at magnetic fields of 180 mT and 30 mT have been performed. For the measurement at 180 mT we applied 25 different electric fields between 0 and 1400 V/cm. The resonance strength for dielectronic recombination via high Rydberg states initially increases linearly with electric field and later levels out. At a magnetic field of 30 mT we applied 15 different electric fields ranging from 0 to 140 V/cm. Compared to the measurement at 180 mT the initial slope of the rate enhancement was larger by almost a factor of 2. The fraction of resonant strength not measured due to field ionization is estimated by a model calculation of dielectronic recombination cross sections.

Place, publisher, year, edition, pages
2001. Vol. 64, no 3, 032707/1-032707/7 p.
Keyword [en]
MAGNETIC-FIELDS
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:miun:diva-1473Local ID: 148OAI: oai:DiVA.org:miun-1473DiVA: diva2:26505
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2012-02-12Bibliographically approved

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Glans, Peter
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