K. Gwosh, B. Hartmann, J. Jakůbek, C. Granja, P. Soukup, O. Jäkel, M. Martišíková: Non-invasive monitoring of therapeutic carbon ion beams in a homogeneous phantom by tracking of secondary ions. Physics in Medicine and Biology 58(11), 3755-3773 (2013). doi:10.1088/0031-9155/58/11/3755