The IHEP Accelerating and Storage Complex (UNK) Status Report

A 3 TeV superconducting proton synchrotron has been chosen as the basis for the IHEP accelerating and storage complex (UNK). The UNK project envisages future development of the colliding beam facility. The UNK basic parameters have been reported in previous papers1−2). This report will present the changes in the project as well as the progress attained in the design of some systems.