The TRAPSENSOR facility: an open-ring 7 tesla Penning trap for laserbased precision experiments Gutiérrez, Manuel Berrocal, Joaquín Cornejo, Juan Manuel Domínguez, Francisco del Pozo, Jesús Arrazola, Íñigo Penning trap Mass spectrometry Fluorescence detection Laser cooling Beam preparation APenning-trap facility for high-precision mass spectrometry based on a novel detection method has been built. This method consists in measuring motional frequencies of singly-charged ions trapped in strong magnetic fields through the fluorescence photons from laser-cooled 40Ca+ ions, to overcome limitations faced in electronic single-ion detection techniques. The key element of this facility is an open-ring Penning trap coupled upstream to a preparation Penning trap similar to those used at Radioactive Ion Beam facilities. Here we present a full characterization of the trap and demonstrate motional frequency measurements of trapped ions stored by applying external radiofrequency fields in resonance with the ions’ eigenmotions, in combination with time-of-flight identification. The infrastructure developed to observe the fluorescence photons from 40Ca+, comprising the 12 laser beams and the optical system to register the image in a high-sensitive CCD sensor, has been proved by taking images of the trapped and cooled 40Ca+ ions. This demonstrates the functionality of the proposed laser-based mass-spectrometry technique, providing a unique platform for precision experiments with implications in different fields of physics. 2020-02-04T11:12:44Z 2020-02-04T11:12:44Z 2019-02-27 journal article Gutiérrez Torres, M. J., Berrocal, J., Cornejo, J. M., Domínguez, F., Del Pozo, J. J., Arrazola Maiztegui, I., ... & Rica, R. A. (2019). The TRAPSENSOR facility: an open-ring 7 tesla Penning trap for laser-based precision experiments. New J. Phys. 21 023023 http://hdl.handle.net/10481/59404 10.1088/1367-2630/aafa45 eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España IOP Publishing