Gutiérrez, M.J.; Berrocal, J.; Cornejo, J.M.; Domínguez, F.; Del Pozo, J.J. et al.: The TRAPSENSOR facility: An open-ring 7 tesla Penning trap for laser-based precision experiments. In: New Journal of Physics 21 (2019), Nr. 2, 23023. DOI:
https://doi.org/10.1088/1367-2630/aafa45
Zusammenfassung: |
A Penning-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.
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Lizenzbestimmungen: |
CC BY 3.0 Unported - https://creativecommons.org/licenses/by/3.0/
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Publikationstyp: |
Article |
Publikationsstatus: |
publishedVersion |
Erstveröffentlichung: |
2019 |
Schlagwörter (englisch): |
beam preparation, fluorescence detection, laser cooling, mass spectrometry, Penning trap, Fluorescence, Ion beams, Ions, Laser beams, Laser cooling, Mass spectrometry, Optical systems, Photons, beam preparation, Fluorescence detection, Frequency measurements, Penning trap, Radio-frequency fields, Radioactive ion beam facility, Spectrometry technique, Strong magnetic fields, Trapped ions
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Fachliche Zuordnung (DDC): |
530 | Physik
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