NEW DEVELOPMENTS IN WARP - PROGRESS TOWARD END-TO-END SIMULATION

The development of a high current, heavy-ion beam driver for inertial confinement fusion requires a detailed understanding of the behavior o f the beam, including effects of the strong self-fields. The necessity of including the self-fields of the beam makes particle-in-cell (PIC) simulation techniques ideal, and for this reason, the multi-dimension al PIC/accelerator code WARP has been developed. WARP [1] has been use d extensively to study the creation and propagation of ion beams both in experiments and for the understanding of basic beam physics. An ove rview of the structure of the code will be presented along with a disc ussion of features that make the code an effective tool in the underst anding of space-charge dominated beam behavior. Much development has b een done on WARP increasing its flexibility and generality. Major addi tions include a generalized field description, an efficient steady-sta te modeling technique, a transverse slice model with a bending algorit hm, further improvement of the parallel processing version, and capabi lities for Linking to chamber transport codes. With these additions, t he capability of modeling a large scale accelerator from end-to-end co mes closer to reality. Published by Elsevier Science B.V.