MOPAM2R2
GSI, Darmstadt, Germany
GSI, Darmstadt, Germany
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MOPAM2R2 |
Cooling of Rare Isotope Beams in the ESR Storage Ring | |
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| Beam cooling is the most important technique for the preparation of stored secondary beams in the ESR storage ring. The rare isotope beams are produced in a thick target by fragmentation of a heavy ion primary beam. The low intensity of the secondary beam can be increased by longitudinal accumulation schemes which use both stochastic and electron cooling of the injected beam. The conflict between the high energy of the heavy ion beam needed to produce highest intensities of rare isotopes and the request of some experiments for much lower energies can be resolved by deceleration of the secondary beam in the ESR. The efficiency of deceleration crucially depends on the low emittance and momentum spread of the beam when deceleration starts. Electron cooling at intermediate energies in the course of the deceleration and at the final energy is an additional asset to the goal of efficient deceleration to lowest energies and optimum conditions for experiments. The report gives an overview of various aspects of beam cooling in the endeavor to prepare highest beam quality and luminosity for experiments with stored secondary beams in the ESR. | ||
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Slides MOPAM2R2 [8.704 MB] | |
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| THPOSRP20 | Beam Measurements of a Palmer Pick-up for the Collector Ring of FAIR | 95 |
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| The stochastic cooling system of the Collector Ring (CR) of the future FAIR facility will have three pick-up tanks and two kicker tanks. For the pre-cooling of very hot RIBs, a pick-up tank with eight Faltin-type structures for Palmer-cooling has been constructed by GSI. The structures have been designed using High-Frequency Structure Simulator (HFSS). The Palmer PU tank has been tested with β = 0.83 proton beams at the COoler SYnchrotron (COSY) of the FZJ. This publication will present the results of measurements with beam and compare them with simulations (HFSS and Microwave Studio). The pick-up operates at room temperature. But it has artificial cold loads instead of normal terminators. The results of the noise temperature measurements will also be presented. | ||
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Poster THPOSRP20 [2.699 MB] | |
| DOI • | reference for this paper ※ doi:10.18429/JACoW-COOL2023-THPOSRP20 | |
| About • | Received ※ 06 October 2023 — Revised ※ 11 October 2023 — Accepted ※ 12 October 2023 — Issued ※ 02 December 2023 | |
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