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TUM12 |
Scaling Laser Cooling of Ion Beams towards High Beam Energies | |
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Laser cooling has proven to be a viable technique for reducing the longitudinal phase space volume of bunched ion beams up to relativistic energies. Moreover, the fluorescence emitted from the ions due to deexcitation of the laser-excited cooling transition can serve as a powerful tool for atomic physics, e.g. for spectroscopy of fast transitions in highly charged ions, but also as a versatile diagnostic that can be seen as complimentary to standard, charge-based diagnostic techniques. In this presentation we will discuss how to design laser cooling setups for future high energy ion beam facilities such as FAIR and HIAF with special emphasis on the laser ion beam interaction and the resulting demands on laser systems used for reliable, turn-key laser cooling setups. We will present the state of the art of laser cooling, presenting recent results from beam times at ESR, GSI Darmstadt, and CSRe, IMP Lanzhou. | ||
Slides TUM12 [21.109 MB] | ||
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THM11 |
Systematic Measurements with Electron Cooled Bunched Heavy Ion Beams | |
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The results of systematic studies with electron-cooled bunched beams of highly charged ions at the Experimental Storage Ring ESR at GSI Helmholtzzentrum GmbH, Darmstadt are presented. The series of experiments were conducted during the beamtime block in 2016 for different ion species as well as ion beam energies. In these measurements, we recorded all three beam phase space planes simultaneously with high resolution, using a recently installed fast current transformer (to measure the bunch length, hence deduce the momentum spread) and ionization profile monitors (to measure horizontal and vertical emittances). A comparison of the results with those obtained with coasting beams is given as well. | ||
Slides THM11 [3.032 MB] | ||
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