TUXAUD04
IMP/CAS, Lanzhou, People's Republic of China
IMP/CAS, Lanzhou, People's Republic of China
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TUXAUD04 |
Conceptual Design of the HIAF Electron Cooling System | |
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| A new accelerator complex HIAF is under design at IMP Lanzhou to provide intense primary and radioactive ion beams for nuclear physics, atomic physics and applied researches. The key parts of HIAF are the booster ring which is used to accumulated heavy ions and the spectrometer ring which can be used as platform for nuclear and atomic physics experiments. A magnetized electron cooling device is supposed to be used in the booster ring for decreasing the transverse emittance of injected beams. Meanwhile, a magnetized electron cooling device together with a ultra-low temperature electron target are also considered to be equipped in the spectrometer ring. In this paper, the conceptual design and main parameters of the electron cooling devices are presented, and the instabilities of cooled high intensity heavy-ion beams are discussed preliminarily. | ||
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Slides TUXAUD04 [14.221 MB] | |
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| TUYAUD03 | Formation of Bunched Electron Beam at the Electron Cooler of CSRm | 85 |
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| The motivation for formation of bunched electron beam at the electron cooler of CSRm is based on the three requirements. Firstly, the high energy electron cooling, especially, the ion beam with TeV energy, the bunched electron beam for cooling would be easier than the DC operating mode. Secondly, the electric field induced by the intensity modulated electron beam will be used for the suppression of instability developed in the high intensity ion beam after accumulation with the help of electron cooling, Thirdly, the electron beam was required to turn on and off in the different period of the atomic physics experiments. Some initial design and consideration were presented in this paper. And also the current situation and condition of CSRm electron cooler were described here. An off-line testbench will be established in the laboratory, and the test and the optimization will be explored in this experimentation. The validity of this system will be verified in the near future. The procedure of the modulation on the voltage of control electrode in the electron gun of the CSRm cooler was discussed. The scheme of off-line measurement was devised according to the progress. | ||
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Slides TUYAUD03 [4.038 MB] | |
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