Three-dimensional simulations of a solid graphite target for high intensity fast extracted uranium beams for the Super-FRS

This paper presents threedimensional numerical simulations of thermodynamic and hydrodynamic response of a wheel shaped solid graphite production target for the super conducting fragment separator (SuperFRS) that is irradiated with a fast extracted high intensity uranium beam. These fragment separator experiments will be carried out at the future Facility for Antiprotons and Ion Research (FAIR), at Darmstadt. Previously, we reported simulation results that were carried out using twodimensional computer codes which showed that one can use a solid graphite target for the Super-FRS for the highest intensity (510¹¹ ions per spill) of the fast extracted uranium beam. Present results, however, have shown that due to threedimensional effects the maximum intensity that can be used with such a target is 310¹¹ ions per spill. A detailed comparison between twodimensional and threedimensional results is presented in this paper.