Mainz 2017 – wissenschaftliches Programm
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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 Micke1,2, Sven Bernitt1,3, 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 Schmöger1,2, Rima X. Schüssler1, Christoph Schweiger1, Julian Stark1, Thomas Stöhlker3, Sven Sturm1, Joachim Ullrich2, Robert Wolf1, Piet O. Schmidt2,5, 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.