Hannover 2016 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 27: Precision spectroscopy of atoms and ions I (with Q)
A 27.3: Vortrag
Mittwoch, 2. März 2016, 15:15–15:30, f428
Design and commissioning of the ALPHATRAP ion transfer beamline — •Alexander Egl1,2, Ioanna Arapoglou1,2, J.R. Crespo Lopez-Urrutia1, Henrik Hirzler1,2, Sandro Kraemer1,2, Peter Micke1,3, Tim Sailer1,2, Andreas Weigel1,2, Robert Wolf1, Sven Sturm1, and Klaus Blaum1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — 2Fakultät für Physik, Universität Heidelberg — 3Physikalisch-Technische Bundesanstalt, QUEST, 38116 Braunschweig
The Penning-trap experiment ALPHATRAP at the Max-Planck-Institut für Kernphysik aims to test bound-state quantum electrodynamics by determining the g-factor of the bound electron in the electric field of highly charged ions (HCI) with ultra-high precision. HCI up to hydrogen-like 208Pb81+ will be provided by the Heidelberg Electron Beam Ion Trap (Heidelberg-EBIT). Therefore, an ultra-high vacuum room temperature ion transfer beamline will be used to guide HCI to the ALPHATRAP setup, consisting of a custom-made cryostat and a superconducting magnet containing the precision Penning-trap system. Superior vacuum conditions are essential to reduce recombination reactions of the HCI to negligible levels. In addition to the Heidelberg-EBIT, a compact room temperature EBIT is available, which allows flexible creation of HCI from injected gas, e.g. 40Ar15+ or 129Xe25+. These ions in turn will be used during the commissioning phase of ALPHATRAP. The design and commissioning of the ion transfer beamline as well as results from the compact room temperature EBIT will be presented.