On Some Projects of Modernization of the Yerevan Synchrotron ARUS

The paper briefly describes the projects for the modernization and modification of the Yerevan Electron Synchrotron ARUS of the A. Alikhanyan National Science Laboratory (Yerevan Physics Institute). The described work proposed in different years is of interest related to the discussion of the issue of creating a new accelerator base in Armenia for solving actual applied and fundamental physical problems.