Student Poster: "Portland Cement Paste Behaviour Under Gamma Radiation Field in Geological Repository" - Authors: Eduardo Ferreira (pictured), Margareth Franco, Luis Gallego Martinez, Júlio Takehiro Marumo, and Roberto Vicente, Instituto de Pesuisas Energeticas e Nucleares (Brazil), Xabier Turrillas, Institut de Ciència de Materials de Barcelona (Spain), and Fabiano Yokaichiya, Helmholtz-Zentrum Berlin für Materialien und Energie – HZB (Germany)