Dedicated STEM for 200 to 40 keV operation N. Dellby, N.J. Bacon, P. Hrncirik, M.F. Murfitt, G.S. Skone, Z.S. Szilagyi and O.L. Krivanek Eur. Phys. J. Appl. Phys., 54 3 (2011) 33505 Published online: 14 June 2011 DOI: 10.1051/epjap/2011100429