USE OF BENT-CRYSTAL DEFLECTORS TO STEER BEAM IN U-70 ACCELERATOR OF IHEP- STATUS AND PROSPECTS

The report presents an overview the results of IHEP activity in the field of study and using bent crystals to steer high-energy proton and ion beam obtained during 2010-2012. The hardware installed to study crystal collimation and extraction is described. A new dedicated beam transfer line was arranged to study the performance of crystals. It has been shown that the crystal deflections developed are capable of sustaining long-term operation to deliver high-energy extracted beams for fixed-target physics. Experience with practical applications of bent crystals are outlined. First results on the extraction 24.1 GeV nucleon carbon ions are also presented.