Berlin 2014 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 14: Poster: Precision spectroscopy of atoms and ions (with Q)
A 14.12: Poster
Montag, 17. März 2014, 16:30–18:30, Spree-Palais
An electrodynamic system for highly charged ion transfer to a Paul trap — •Lisa Schmöger1,2, Baptist Piest1, Julian Stark1, Maria Schwarz1,2, Oscar O. Versolato1,2, Piet O. Schmidt2, and José R. Crespo López-Urrutia1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany — 2Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
Electron beam ion traps (EBITs) are efficient tools for highly charged ion (HCI) production and spectroscopy. While narrow optical transitions in HCI at rest are of great interest for precision studies of fundamental physics and for realisations of high accuracy frequency standards [1]. However, due to the high ion temperature inside of an EBIT, laser spectroscopy on HCIs is severely constrained by Doppler broadening [2].
For further improvements, our cryogenic linear Paul trap [3] experiment (CryPTEx) in-line with an EBIT will allow for trapping and sympathetic cooling of a wide range of HCIs. A deceleration beamline allows for efficient HCI transfer and their injection at very low kinetic energy into CryPTEx. The deceleration of the ion bunches is performed by means of a novel pulsed buncher tube. We present time-of-flight spectra and measurements with retarding field analysers showing the deceleration and time focussing properties of the setup.
[1] J.C. Berengut et al., Phys. Rev. Lett. 106, 210802 (2011)
[2] V. Mäckel et al., Phys. Rev. Lett. 107 (2011) 143002
[3] M. Schwarz et al., Rev. Sci. Instr. 83, 083115 (2012)