Аннотация:Two beam runs of the Booster synchrotron (Booster) — the new cycling accelerator of Nuclotron-based Ion Collider fAcility (NICA) complex were performed in November-December 2020 and in September 2021 in Laboratory of High Energy Physics (LHEP) JINR. New technologies were developed and new physical and technical solutions were realized first time in Russia to provide Booster construction and to perform its beam runs. These works describe technologies and technical solutions, methods of Booster commission and testing of its systems and results of two Booster runs.