Dynamics Study of Attaining Heavy Ion Beam With a Scale of Nanosecond Pulse Length in CSR

The feasibility of attaining short pulse duration heavy ion beam with a scale of nanosecond pulse length was studied in the Heavy Ion Research Facility in Lanzhou—Cooling Storage Ring (HIRFL-CSR), such heavy ion beam can be produced by non-adiabatic compression, and it is implemented by a fast rotation in the longitudinal phase space. In this paper, the bunch compression beam dynamics of ²³⁸U⁷²⁺ which the energy is 250 MeV/u, initial bunch pulse duration is 200 ns, and the initial momentum spread is 5×10^-4 was computed with K-V envelope model, and the possible beam parameters are presented during bunch compression. The short ²³⁸U⁷²⁺ bunch of 16 ns is got which can satisfy with the research of high energy density physics.