EP-1801: Prompt gamma imaging for the identification of proton range deviations due to anatomical change. (April 2018) - Xie, Y.; Petzoldt, J.; Janssens, G.; Yin, L.; Bentefour, E.H.; Smeets, J.; Prieels, D.; Lustig, R.L.; Lin, A.; Teo, B.K.