Hannover 2010 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 29: Atomic Systems in External Fields II
A 29.5: Vortrag
Freitag, 12. März 2010, 15:00–15:15, B 302
Charge Breeding with Dresden EBIS/T systems — •Alexandra Thorn1, Alexey Sokolov2, Gleb Vorobjev2, Frank Herfurth2, Oliver Kester2, Erik Ritter1, Falk Ullmann3, and Günter Zschornack1 — 1Institut für Angewandte Physik, Technische Universität Dresden, Germany — 2Gesellschaft für Schwerionenforschung, Darmstadt, Germany — 3Dreebit GmbH, Dresden, Germany
High-precision atomic mass measurements or nuclear fusion reaction studies are two examples for projects which rely on the availability of highly charged ions (HCI) from a broad spectrum of elements or exotic isotopes. However, the desired HCI often cannot be provided directly from one source. Thus, initially low charged ions have to be converted or ”bred” to higher charge states. We have performed simulations as well as x-ray and ion extraction measurements to investigate the possibilities of charge breeding with the SPARC-EBIT, a compact room-temperature electron beam ion trap of the Dresden EBIT type. K1+ ions produced by a surface ion source were injected into the EBIT and bred to charge states as high as K19+. Continuous as well as pulsed injection methods were tested revealing details about the process of filling the electrostatic trap of the EBIT with externally produced ions. Experimentally achieved capture and breeding efficiencies for various charge states are summarized and the application of advanced charge breeding techniques with the Dresden EBIT are discussed.