U400M accelerator complex

- U400M accelerator complex has been under modernization and reconstruction since July 2020. The works are planned to last till July 2022. At the end of 2022 U-400M accelerator was upgraded and will be re-commissioned in 2023.
During the reconstruction some cyclotron components, parts of beam lines, out-of-date vacuum and water cooling systems and the main coils were demounted. A new control system is being developed; new components of the cyclotron are designed and manufactured.
The purpose of this modernization is to enhance the reliability and stability of the accelerator (replacement of the main magnet coils, accelerator vacuum system components, control system and radiation control system) and to increase the heavy-ion beam intensity and energy.
- U400M modernization schedule

- Progress in pictures
U400M isochronous cyclotron had been in operation since 1991. The cyclotron was designed for acceleration of Li to Bi ion beams with A/Z=3÷3.6 at energies of 34÷60 MeV/nucleon and the ones with A/Z=8÷10 at energies of 4.5÷9 MeV/nucleon.
U400M cyclotron delivered 11B, 15N, 32S beams to ACCULINNA-1,2 separators, 18O, 22Ne to COMBAS setup and 40Ar, 48Ca to MASHA mass-spectrometer.