Hydrodynamic simulation of targets exposed to intense beams of accelerated particles

Construction of an effective antiproton source for experiments on colliding p anti p beams leads to the necessity of focusing an intense (approximately 1 to 2x1013 particles) relativistic proton beam into a spot on a metal target of 100-200 μm radius. The dynamics of a cylindrical target heated by an axial fast proton beam is calculated. A semiempirical equation of state is used. The hydrodynamic simulation is based on the generalized Saha-Riser ionization equation suitable for describing both a hot rarefied plasma and cold substance compression. The results obtained are compared with analogous calculations of other authors. It is noted that the experiments with intense proton beams can give valuable new information about thermodynamic properties of metals near the critical point