ITEP proton synchrotron reconstruction

The ITEP 10 GeV Proton Synchrotron (U-10) is now being reconstructed into a proton and ion accelerator complex which would be able to accelerate ions of all atoms with various Z/A values. The first stage of the reconstruction includes construction of an ion injector, of a beam transport line (from the new injector to the synchrotron), and modification of proton synchrotron systems necessary for ion acceleration. In particular, the authors need to change the synchrotron vacuum chamber together with its pumping system to reach 10-10 Torr vacuum instead of 10-6 Torr now. All these modernizations are, practically, completed. In 1988, first ions of He2+ were injected into the synchrotron and accelerated successfully up to the energy 4.3 GeV/A. In this, year the authors are going to try to accelerate some heavier ions obtained from the new injector. As the authors hope, light ions will be accelerated up to 4 GeV/A, and heavy ones (unfully stripped) - up to 1 GeV/A. 5 refs., 3 figs