An improved spin-polarized electron energy loss spectroscopy apparatus with high momentum resolution was developed during the last few years. It is equipped with a multichannel energy analyzer and multichannel spin imaging detector. This technique allows to see features on the energy loss spectra, angular dependence of asymmetry and intensity and pronounced sensitivity on the primary energy. In this work, we studied dipolar scattering resonances, spin-dependent electron-hole excitations and their momentum dependence and collective magnetic excitation, i.e. high energy magnons.