We have analyzed the Voyager Low-Energy Charged Particle (LECP) ion data from the Jovian magnetosphere to determine the phase-space densities in the region 5--80 RJ. We used data only from the Jovian current sheet crossings for locally mirroring particles. These are the first calculations of phase-space densities in the non-dipolar field region containing the Jovian magnetodisk current sheet. The profiles are consistent with lossy inward radial transport and a source in the outer magnetosphere. The inferred loss rate in a radial diffusion model measuring how quickly particles are scattered out of the neutral sheet exceeds the usual strong diffusion loss rate. The energetic particles lost from the neutral sheet do not necessarily precipitate into the Jovian atmosphere, but if a substantial fraction of these particles is actually precipitated, they contribute a large part of the total auroral luminosity. ¿ American Geophysical Union 1990