NRL HIFAR research program annual progress report FY92/93

Progress during this reporting period has spanned several areas ranging from studies of fundamental intense-beam transport physics, including comparisons of simulations with experimental results, to accelerator system design and simulation code development. Performance of the research described here has continued to benefit from the close collaboration with personnel at LBL and LLNL. In addition, studies of the longitudinal and transverse physics, which are jointly supported by the Division of High Energy Physics of the US Department of Energy, have benefitted from collaboration with personnel at the University of Maryland associated with the Maryland transport experiment. The research results supported by this program have been, and will be, actively reported to the scientific community through papers presented at conferences and published in conference proceedings as well as in the refereed literature. The work which has been documented for publication is described, in detail, in copies of the referenced material provided in the Appendix. This work is also summarized briefly in the next section. An additional section describing, in depth, research which has not yet been prepared for publication, is also included. This work investigates the basic nonlinear physics which is important to the design of large aperture magnetic quadrupole transport systems, as well as the numerical requirements for reliable simulation of that physics