# Extending the applicability of an open-ring trap to perform experiments with a single laser-cooled ion

Abstract : An open-ring ion trap, also referred to as transparent trap was initially built up to perform $\beta$-$\nu$ correlation experiments with radioactive ions. This trap geometry is also well suited to perform experiments with laser-cooled ions, serving for the development of a new type of Penning trap, in the framework of the project TRAPSENSOR at the University of Granada. The goal of this project is to use a single $^{40}$Ca$^+$ ion as detector for single-ion mass spectrometry. Within this project and without any modification to the initial electrode configuration, it was possible to perform Doppler cooling on $^{40}$Ca$^+$ ions, starting from large clouds and reaching single ion sensitivity. This new feature of the trap might be important also for other experiments with ions produced at Radioactive Ion Beam (RIB) facilities. In this publication, the trap and the laser system will be described, together with their performance with respect to laser cooling applied to large ion clouds down to a single ion.
Document type :
Journal articles
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http://hal.in2p3.fr/in2p3-01174351
Contributor : Michel Lion <>
Submitted on : Thursday, July 9, 2015 - 8:32:13 AM
Last modification on : Thursday, June 11, 2020 - 10:06:20 PM

### Citation

J. M. Cornejo, M. Colombano, J. Doménech, M. Block, P. Delahaye, et al.. Extending the applicability of an open-ring trap to perform experiments with a single laser-cooled ion. Review of Scientific Instruments, American Institute of Physics, 2015, 86, pp.103104. ⟨10.1063/1.4932310⟩. ⟨in2p3-01174351⟩

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