Publications

Resistive hose growth of intense ion beams propagating in air

Rose, D.V.; Genoni, T.C.; Welch, D.R.; Mazarakis, Michael G.

The growth of the resistive hose instability for intense proton beams is examined using three-dimensional particle-in-cell simulations. The simulation results are compared with a time-dependent model of resistive hose growth that uses a spread-mass formulation and a time-dependent conductivity model. Radius tailoring of the beam head is shown to suppress high-frequency instability growth. In addition, the effects of a reduced-density plasma channel on the growth of the resistive hose instability is calculated. © 2006 The American Physical Society.