The Heavy Ion Fusion Virtual National Laboratory High Current
Experiment (HCX) is exploring transport issues such as dynamic
aperture, effects of quadrupole rotation, and the effects on
the beam of nonideal distribution function, mismatch, and
electrons, using one driver-scale 0.2 μC/m, 2–10
μs coasting K+ beam. Two- and three-dimensional
simulations are being done, using the particle-in-cell code
WARP to study these phenomena. We present results which predict
that the dynamic aperture in the electrostatic focusing transport
section will be set by particle loss.