Figure 2
From: Survival of tumor cells after proton irradiation with ultra-high dose rates
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1748-717X-6-139/MediaObjects/13014_2011_Article_466_Fig2_HTML.jpg)
Accumulation of cells in G2 phase after irradiation. Cells were irradiated with protons (3 Gy) in pulsed mode (P) or continuous mode (C). Data are from 3 independent experiments, except for irradiated (3 Gy) sample at 0 h (1 experiment). Indicated are means and standard errors of the mean (SEM).