| Paper | Title | Page |
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TUPM2HA02 |
Commissioning of the 2 MeV COSY Electron Cooler in Jülich | |
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| The construction of the 2 MeV electron cooler at BINP has been completed. After initial testing, the cooler was shipped to Jülich. The installation in COSY is scheduled to begin in April 2013. The report covers the installation and commissioning progress in Jülich. The history of the project is briefly touched on. | ||
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Slides TUPM2HA02 [4.490 MB] | |
| WEPPO13 | Simulation Study of Beam Cooling with Electron Energy Modulation | 124 |
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| The electron cooling is less efficient for hot ion beam because the cooling force reduces rapidly at high electron-ion relative velocity. A possibility of electron cooling for ion beam with large velocity spread was studied by simulation. The electron beam velocity swept through the ion velocity distribution during cooling procedure. The average friction force will be increased at high electron-ion relative velocity range. The results show a fast beam distribution shrinking could be achieved through the electron energy sweep method. The cooling time dependence on the modulation frequency and amplitude was investigated by simulation. The simulation results also show different ion beam longitudinal velocity distribution can be produced via electron energy modulation. | ||
| WEAM1HA02 | Influence of Electron Energy Detuning on the Lifetime and Stability of Ion Beam in CSRm | 84 |
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| The energy spread of electron beam artificially was increased with the help of the detuning system in the electron cooler. The Influence of electron energy detuning on maximum accumulated intensity, the lifetime and stability of ion beam were experimentally investigated with the beam of 3.7MeV/u 112Sn35+ in CSRm. The lifetime was derived from the signals of ion beam intensity from DCCT varying with time, and the instability was observed by mean of the longitudinal frequency signals from Schottky probe. The experiments results show that no significant influence of electron energy detuning on the maximum accumulated intensity and lifetime. Due to the limitation of beam intensity from injector, the space charge limitation and saturation condition was not approached, and the obvious evidence for instability suppression by the detuning has not observed in such detuning frequency range. | ||
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Slides WEAM1HA02 [2.608 MB] | |