Dedicated STEM for 200 to 40 keV operationN. Dellby, N.J. Bacon, P. Hrncirik, M.F. Murfitt, G.S. Skone, Z.S. Szilagyi and O.L. KrivanekEur. Phys. J. Appl. Phys., 54 3 (2011) 33505DOI: https://doi.org/10.1051/epjap/2011100429