Prospects for 1019eV cosmic ray studies in South Australia

Abstract We discuss some of the important elements necessary for the successful operation of a very large cosmic ray array. Some of these points are illustrated using a detector Monte Carlo. The importance of composition measurement is stressed, particularly in regard to anisotropy interpretation. We review some of the issues connected with the other uncertainty in anisotropy studies, the galactic magnetic field, and show that with reasonable assumptions about its large scale structure, an experimental site in the southern hemisphere would have a good view of both the Virgo cluster region and the Magellanic Clouds. The features of a possible site at Woomera in South Australia are discussed. Finally, some technical aspects of solar power and communication technology are reviewed. Some options for the array control, data collection procedures and system timing are outlined.