Automation of the Lebedev Physical Institute synchrotron to the energy 1.3 GeV as the first stage of the accelerator upgrade

Lebedev Physical Institute electron synchrotron to the maximum energy up to 1.3 GeV is under operation since the mid ´70s. It is weak focusing machine consisting of four 90-degree sectors with the radii 4 m and four straight sections between them. The microtron with the energy 7 MeV and pulse current 50 mA is used for injection into the main accelerator. The average intensity of the synchrotron is 0.1 μA, repetition rate being equal to 50 Hz. Extracted electron beam and bremsstrahlung photons are used for the experiments in the field of nuclear and elementary particles physics. The most remarkable achievement at this machine is the discovery of creation and decay of η-mesic nuclei arising from reaction of photon of energy 1 GeV with carbon nuclei, having been made at the end of the ´90s. Up to now computer was not used for synchrotron parameters monitoring and control. We expect that automation might improve significantly the main parameters of the accelerator as well as much better time dependent stability of the electron energy and intensity. The paper is the extraction from the concept design of accelerator automation project. We plan to use the concept and experience acquired during development of the Lebedev Physical Institute Radiation Complex. The basis of this concept is the flexible computer interface at the level of executable that allows build any desirable representation of acquired data as well as controls to affect the accelerator systems. Necessary upgrade of the existing computer code will be undertaken to meet additional requirements of distributed control and measurements