Schmöger, L.; Schwarz, M.; Baumann, T.M.; Versolato, O.O.; Piest, B. et al.: Deceleration, precooling, and multi-pass stopping of highly charged ions in Be+ Coulomb crystals. In: Review of Scientific Instruments 86 (2015), Nr. 10, 103111. DOI:
https://doi.org/10.1063/1.4934245
Zusammenfassung: |
Preparing highly charged ions (HCIs) in a cold and strongly localized state is of particular interest for frequency metrology and tests of possible spatial and temporal variations of the fine structure constant. Our versatile preparation technique is based on the generic modular combination of a pulsed ion source with a cryogenic linear Paul trap. Both instruments are connected by a compact beamline with deceleration and precooling properties. We present its design and commissioning experiments regarding these two functionalities. A pulsed buncher tube allows for the deceleration and longitudinal phase-space compression of the ion pulses. External injection of slow HCIs, specifically Ar13+, into the linear Paul trap and their subsequent retrapping in the absence of sympathetic cooling is demonstrated. The latter proved to be a necessary prerequisite for the multi-pass stopping of HCIs in continuously laser-cooled Be+ Coulomb crystals. © 2015 AIP Publishing LLC.
|
Lizenzbestimmungen: |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
Publikationstyp: |
Article |
Publikationsstatus: |
publishedVersion |
Erstveröffentlichung: |
2015 |
Schlagwörter (englisch): |
Charged particles, Ion sources, Laser cooling, Phase space methods, Fine structure constants, Frequency metrology, Highly charged ions, Linear Paul Trap, Preparation technique, Pulsed ion sources, Spatial and temporal variation, Sympathetic cooling, Cooling
|
Fachliche Zuordnung (DDC): |
530 | Physik
|