Different types of accelerated ion structures registered in the magnetotail PSBL: their spatial-temporal characteristics and auroral manifestations. E.E. Grigorenko^1, R. Koleva^2, J.-A. Sauvaud^3, L.M. Zelenyi^1 ^1Space Research Institute of RAS, Moscow Russia ^2Solar-Terrestrial Influences Institute “Acad. D. Mishev”, BAS, Sofia, Bulgaria ^3CESR, Toulouse, France Cluster and Geotail observations in the PSBL of the Earth’s magnetotail revealed two different types of accelerated ion populations. The first type represents energy collimated field-aligned ions having a rather long duration (up to 20 min) and energies $\le$ 20 keV. During intervals of their propagation isotropic electron velocity distributions were observed in the PSBL-lobe interface. Multipoint Cluster observations of such type of accelerated ion structures revealed that they represent long-living plasma filaments elongated along the lobe magnetic field (L $\sim$ 60 - 100 RE) and strongly localized ($\sim$ 0.2-0.7 Re) in the direction perpendicular to the main magnetic field. On the basis of comprehensive statistical analysis we have proved that these ion structures were accelerated in the distant CS during quiet geomagnetic intervals. During such intervals of “quiet PSBL” ion non-adiabatic acceleration occurred simultaneously at several spatially localized sources located in the CS at closed magnetic field lines, i.e. the acceleration processes were not related with the magnetic reconnection. Another type of ion velocity distributions in PSBL represents powerful (with energies up to 100 keV) field-aligned ion beams having rather large parallel temperatures. They were observed together with anisotropic electron velocity distributions formed by cold and hot counterstreaming populations. This feature is peculiar for the magnetic separatrix and indicates that during such “active PSBL” intervals ion acceleration occurred near the magnetic reconnection region. According to multipoint Cluster analysis the time scale of such acceleration source is of the order of a few minutes, which indicates on the importance of transient effects and the corresponding role of inductive electric fields for the process of ion acceleration. The auroral manifestations during the intervals of “quiet” and “active” PSBL were studied.