Heidelberg 2015 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 21: Precision Spectroscopy of Atoms and Ions II (with A)
Q 21.8: Talk
Tuesday, March 24, 2015, 13:00–13:15, M/HS1
A novel permanent magnetic EBIT — •Peter Micke1,2, Sven Bernitt1,3, James Harries4, Lisa F. Buchauer1, Thore M. Bücking1, Steffen Kühn1, Piet O. Schmidt2,5, and José R. Crespo López-Urrutia1 — 1Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 2Physikalisch-Technische Bundesanstalt, Braunschweig, Germany — 3Friedrich-Schiller-Universität Jena, Germany — 4SPring-8, Hyogo, Japan — 5Leibniz Universität Hannover, Germany
Research on moderately and highly charged ions (HCIs) is of great interest not only for atomic physics but also fundamental studies. Electron beam ion traps (EBITs) have proven to be versatile and indispensable tools for the production and study of such ions. In an EBIT, an electron beam is compressed by a strong, inhomogeneous magnetic field to breed the ions efficiently. Usually the field is generated by superconducting magnet coils. To ease operation we introduce a novel magnetic design based on permanent magnets for a 0.74 tesla EBIT. It allows operation at room temperature, resulting in a low-cost and low-maintenance apparatus. An open trap design offers a large solid angle access to the trap center. Our EBIT is intended to serve as a reliable source for HCIs. Additionally a new off-axis gun is under construction, to be used at synchrotron and free-electron laser light sources for energy calibration by spectroscopy on HCIs. By using this off-axis gun the photon beam can pass through the EBIT and is available for beamline users. Currently, first experiments with a prototype are carried out regarding trapping and extraction of HCIs.