S301
GSI, Darmstadt, Germany
FZJ, Jülich, Germany
GSI, Darmstadt, Germany
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S301 |
Stochastic Cooling System for the Collector Ring at FAIR | |
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| An overview on the demanding stochastic cooling system of the Collector Ring at FAIR is given. The system operates in the frequency band 1-2 GHz, it has to provide fast 3D cooling of antiproton, rare isotope and stable heavy ion beams. The main challenges are (i) the cooling of antiprotons by means of cryogenic movable pick-up electrodes and (ii) the fast two-stage cooling (pre-cooling by the Palmer method, followed by the notch filter method) of the hot rare isotope beams. Progress in designing, manufacturing, testing and integrating the hardware is discussed. The performance of the stochastic cooling processes is predicted by dedicated simulations (rate equations for transverse cooling, Fokker Planck approach for longitudinal cooling). | ||
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Slides S301 [12.697 MB] | |
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| P2002 | Suspended Ground Microstrip Coupled Slotline Electrode for Stochastic Cooling | 89 |
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| An alternative design of a slotline electrode has been developed and simulated. In contrast to the planar slotline pick-up designed for FAIR CR and the slot-ring electrode built by FZJ for FAIR HESR, the presented design uses suspended microstrip lines for the coupling to a planar slotline. This has some advantages and disadvantages for kicker and pick-up applications in respect of losses, power handling, and mechanical aspects. | ||
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Poster P2002 [3.801 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2021-P2002 | |
| About • | paper received ※ 25 October 2021 paper accepted ※ 22 November 2021 issue date ※ 09 December 2021 | |
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