Figure 1
From: Survival of tumor cells after proton irradiation with ultra-high dose rates
Detection of G2 phase cells by cyclinB1 staining. Immunofluorescence detection of cyclin B (red) 10 h (left) and 48 h (right) after continuous proton irradiation (3 Gy) and sham irradiation. Irradiated cells are identified by γ-H2AX staining (green). Apoptotic cells (white arrows) and mitotic cells (yellow arrows) are identified by their appearance after DAPI staining (blue).