Abstract
The multicycling injection from the linear accelerator to the NICA booster is planned to be used for the storage of 197Au31 ions at an energy of 3.1 MeV/u. The intensity of the stored ions is increased by a factor of 3–5 at an injection intensity of 5 × 108–109. The intensity of the stored beam is higher by one order of magnitude than the injection at 108. The maximal intensity is restricted by the incoherent diffusion heating of the stack and the ion lifetime. The simulations of the single turn injection were performed by BETACOOL code. The coherent instability can be developed at high intensity in the presence of the electron cooling. The increment of instability essentially depends on the choice of the working point.
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