Plasma beam dump has been recently proposed to absorb the kinetic energy of the spent beam from particle accelerators. In this presentation a passive beam dump with multiple stage plasma cells are investigated. In this new scheme, the stepped plasma densities are required after the first stage so as to maintain a high decelerating gradient compared to a uniform plasma. Particle-in-cell simulation results show that more than 90% of beam energy can be absorbed in this scheme.
|Working group||Laser-driven electron acceleration|