2.5 GeV booster synchrotron for a new Kurchatov synchrotron radiation source

The Project of complete modernization of a current accelerator complex and the making of the 3-d generation light source is in progress in the NRC «Kurchatov Institute». A new booster synchrotron is part of the injection complex for a new synchrotron light source. It must ensure reliable and stable operation of the upgraded main storage ring. The paper presents the lattice of a new booster synchrotron and its main parameters.

Preacceleration of the multicharged ions with the different A/Z ratios in single RFQ channel

The preacceleration of multicharged ions with the different A/Z ratios extracted from electron cyclotron resonance (ECR) sources is discussed in this report. The capture ratio, emittances and current values of multicharged ions may be better if the ions are preaccelerated before their injection into a booster synchrotron. There is a considerable possibility of separate preacceleration of multicharged ions with different A/Z ratios in a single radio-frequency quadrupole (RFQ) channel. The magnitude of the injection energy into RFQ is about a few keV/u whereas the magnitudes of the injection energy into booster or following linac cascade are 300 keV/u. In addition in this paper we discuss the approach of the fast channel parameter optimization technique by using swarm computations and gradient descend for improving the capture ratio. The optimizations aimed at changing the regular part of the RFQ or matching section profile to improve the matching of the arbitrary oriented in phase space input beam.

Magnetic field errors tolerances of Nuclotron booster

Generation of magnetic field in units of booster synchrotron for the NICA project is one of the most important conditions for getting the required parameters and qualitative accelerator operation. Research of linear and nonlinear dynamics of ion beam 197Au31+ in the booster have carried out with MADX program. Analytical estimation of magnetic field errors tolerance and numerical computation of dynamic aperture of booster DFO-magnetic lattice are presented. Closed orbit distortion with random errors of magnetic fields and errors in layout of booster units was evaluated.