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A: Fachverband Atomphysik

A 14: Highly Charged Ions

A 14.6: Vortrag

Dienstag, 7. März 2017, 15:45–16:00, HS 20

Compact 0.86 T room-temperature electron beam ion traps — •Peter Micke^1,2, Sven Bernitt^1,3, Klaus Blaum¹, Lisa F. Buchauer¹, Thore M. Bücking¹, André Cieluch¹, Alexander Egl¹, James Harries⁴, Steven A. King², Sandro Kraemer¹, Steffen Kühn¹, Tobias Leopold², Janko Nauta¹, Thomas Pfeifer¹, Lisa Schmöger^1,2, Rima X. Schüssler¹, Christoph Schweiger¹, Julian Stark¹, Thomas Stöhlker³, Sven Sturm¹, Joachim Ullrich², Robert Wolf¹, Piet O. Schmidt^2,5, and José R. Crespo López-Urrutia¹ — ¹Max-Planck-Institut für Kernphysik, Heidelberg — ²Physikalisch-Technische Bundesanstalt, Braunschweig — ³Friedrich-Schiller-Universität Jena — ⁴SPring-8, Hyogo, Japan — ⁵Leibniz Universität Hannover

To facilitate accessibility to highly charged ions (HCI) for a wider physics community we have developed a novel type of high-performance room-temperature electron beam ion trap (EBIT). It is based on permanent magnets featuring low-maintenance operation. HCIs are bred and trapped by an electron beam, compressed by the strong, inhomogeneous magnetic field. A protoype proved successful operation and provided a 100 pA continuous beam of Xe ions and charge states of up to 36+ with a 4.6 mA 3 keV electron beam. A second generation of three more EBITs is under commissioning to supply HCIs for precision measurements in Paul and Penning traps as well as X-ray spectroscopy using synchrotron radiation and free-electron lasers. With a magnetic field of 0.86 T, stable operation of a 50 mA electron beam at 1.7 keV was demonstrated.