Auflistung nach Schlagwort "Highly charged ions"

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  • Coulomb crystallization of highly charged ions 
    Schmöger, L.; Versolato, O.O.; Schwarz, M.; Kohnen, M.; Windberger, A.; Piest, B.; Feuchtenbeiner, S.; Pedregosa, J.; Leopold, T.; Micke, P.; Hansen, A.K.; Baumann, T.M.; Drewsen, M.; Ullrich, J.; Schmidt, Piet O.; Crespo López-Urrutia, J.R. (Bristol : IOP Publishing Ltd., 2015)
    Sympathetic Coulomb crystallization of highly charged ions, retrapped in a cryogenic radiofrequency trap, is demonstrated by an over seven orders-of-magnitude decrease in motional temperature.
  • Cryogenic linear Paul trap for cold highly charged ion experiments 
    Schwarz, M.; Versolato, O.O.; Windberger, A.; Brunner, F.R.; Ballance, T.; Eberle, S.N.; Ullrich, J.; Schmidt, Piet O.; Hansen, A.K.; Gingell, A.D.; Drewsen, M.; Crespo López-Urrutia, J.R. (College Park, MD : American Institute of Physics, 2012)
    Storage and cooling of highly charged ions require ultra-high vacuum levels obtainable by means of cryogenic methods. We have developed a linear Paul trap operating at 4 K capable of very long ion storage times of about ...
  • Deceleration, precooling, and multi-pass stopping of highly charged ions in Be+ Coulomb crystals 
    Schmöger, L.; Schwarz, M.; Baumann, T.M.; Versolato, O.O.; Piest, B.; Pfeifer, T.; Ullrich, J.; Schmidt, Piet O.; Crespo López-Urrutia, J.R. (College Park, MD : American Institute of Physics, 2015)
    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 ...
  • The Heidelberg compact electron beam ion traps 
    Micke, P.; Kuehn, S.; Buchauer, L.; Harries, J. R.; Buecking, T.M.; Blaum, K.; Cieluch, A.; Egl, A.; Hollain, D.; Kraemer, S.; Pfeifer, T.; Schmidt, P. O.; Schuessler, R.X.; Schweiger, C.; Stoehlker, T.; Sturm, S.; Wolf, R. N.; Bernitt, S.; Lopez-Urrutia, J.R. Crespo (College Park : American Institute of Physics (AIP), 2018)
    Electron beam ion traps (EBITs) are ideal tools for both production and study of highly charged ions (HCIs). In order to reduce their construction, maintenance, and operation costs, we have developed a novel, compact, ...
  • An ultralow-noise superconducting radio-frequency ion trap for frequency metrology with highly charged ions 
    Stark, J.; Warnecke, C.; Bogen, S.; Chen, S.; Dijck, E.A.; Kühn, S.; Rosner, M.K.; Graf, A.; Nauta, J.; Oelmann, J.-H.; Schmöger, L.; Schwarz, M.; Liebert, D.; Spieß, L.J.; King, S.A.; Leopold, T.; Micke, P.; Schmidt, P.O.; Pfeifer, T.; Crespo López-Urrutia, J.R. ([Erscheinungsort nicht ermittelbar] : American Institute of Physics, 2021)
    We present a novel ultrastable superconducting radio-frequency (RF) ion trap realized as a combination of an RF cavity and a linear Paul trap. Its RF quadrupole mode at 34.52 MHz reaches a quality factor of Q ≈ 2.3 × 105 ...