Speaker
Description
The use of quartz resonators for induced image current detection of trapped ions has been pioneered in a collaboration between the Universities of Granada and Mainz, aiming at developing a novel detection system for the measurement of the cyclotron frequencies of single ions. One of the anticipated applications is mass measurements of superheavy elements produced in fusion-evaporation reactions at lowest rates of single ions at a time. Since 2018, we have performed first experiments on ions, with two types of quartz crystals, demonstrating the functioning of the resonator together with a new amplifier [1], performing proof-of-principle mass measurements [2], and investigating the response of the resonator under non-equilibrium conditions [3]. The latter investigations have clearly shown the advantages of quartzes compared to superconducting resonators, enhancing their use for the envisaged experiments, still subject to reaching the single-ion sensitivity. In this contribution we will present these results, considering different models, and the on-going activities towards the use of quartz resonators on laser-cooled ions in a 7-Tesla open-ring Penning trap [4].
References
[1] A quartz amplifier for high-sensitivity Fourier-Transform Ion-Cyclotron-Resonance measurements with trapped ions, S. Lohse et al., Review of Scientific Instruments 90 (2019) 063202
[2] Quartz resonators for Penning traps toward mass spectrometry on the heaviest elements, S. Lohse et al., Review of Scientific Instruments 91 (2020) 093202
[3] Non-equilibrium coupling of a quartz resonator to ions for Penning-trap fast resonant detection, J. Berrocal et al., Quantum Science and Technology 6 (2021) 044002
[4] The TRAPSENSOR facility: an open-ring 7 tesla Penning trap for laser-based precision experiments, M.J. Gutierrez et al., New Journal of Physics, 21 (2019) 023023
