FOCUSED ELECTRON BEAMS AS A POSSIBLE MODALITY FOR FLASH RADIATION THERAPY: TOPAS/GEANT4 DOSIMETRY SIMULATION STUDY AND PERFORMANCE INVESTIGATION. (February 2022) - Aboulbanine, Z.; Amirkhanyan, Z.; Good, J.; Gross, M.; Li, X.; Krasilnikov, M.; Oppelt, A.; Philipp, S.; Qian, H.; Stephan, F.; Tayalati, Y.