We present the first test of the implementation of a characterization method whose aim is to study the interfaces of magnetic and periodic hetero-structures. The methodology relies on the combination of two techniques, generation of x-ray standing waves and dichroism in x-ray emission. The first one gives the depth selectivity since the maximum of the electric field can be put in specific locations of the stack, the centre of layers or their interfaces, while the second one enables being sensitive to the magnetic character of the atoms present within the stack. To concentrate on the methodology, the well-studied Mg/Co multilayer is analysed by using incident photon of monochromatic energies across the Co L2,3 absorption edge and measuring the intensity of the Co Lαβ emission. Despite large dispersive effects preventing the maxima of the electric field to reach the interfaces of the stack, it has been possible to observe the dichroic signal in the angular distribution of the Co emission intensity, i.e. in the so-called x-ray standing wave curve
