Results of the 44th and 45th Nuclotron runs

The total duration of the 44th (November-December 2011) and 45th (February-March 2012) runs was about 2150 h. During about 900 h the beam was used for experiments in the framework of the current program of physical investigations and for the machine development. Among more important achievements during the 44th run one can mention the deuteron beam acceleration up to a record energy of 4 GeV/u and realization of the slow beam extraction at this energy. During the 45th run the scheduled program of physical investigations including experiments with the deuteron beam (extracted and at the internal target) of energy up to 4 GeV/u was fully implemented. During the run the beam acceleration and slow extraction at 4.5 GeV/u were realized