Rostock 2019 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 35: Precision Spectroscopy of atoms and ions
A 35.18: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Fobau Physik
A proton source for precision experiments in the QLEDS project — •Nicolas Pulido1, Johannes Mielke1, Teresa Meiners1, Malte Niemann1, Juan M. Cornejo1, Matthias Borchert1, 3, Jonathan Morgner1, 2, Amado Bautista1, 2, Stefan Ulmer3, and Christian Ospelkaus1, 2 — 1Institut für Quantenoptik, Leibniz Universität Hannover — 2Physikalisch-Technische Bundesanstalt, Braunschweig — 3Ulmer Fundamental Symmetries Laboratory, RIKEN
Penning traps are an essential tool for high precision measurements on the g-factor of protons and antiprotons to perform tests of the CPT theorem [1]. This is the goal pursued by the BASE collaboration. Here we discuss techniques for sympathetic laser cooling and detection to support these tests [2,3]. We present the design of an off-axis proton source that also allows the introduction of an on-axis antiproton beam in the Penning trap system within the BASE collaboration. The source, consisting of an electron gun and a storage trap, will be commissioned in a cryogenic test setup.
The test setup is composed of a 2-stage cryocooler and a Penning trap with permanent magnets. We discuss different methods of non-destructive ion detection for the test setup.
[1] C. Smorra et al., Nature 550, 371-374 (2017)
[2] C. Smorra et al., EPJ-ST 224, 3055 (2015)
[3] D. J. Wineland et al., J. Res. NIST 103, 259-328 (1998)