Number of cells under various conditions that influence the radiation damage after the irradiation.

<p>(a) Plots for a well oxygenated microenvironment (no hypoxia, OMF = 1 in the <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003120#pcbi.1003120.e064" target="_blank">equation (12)</a>) (cells killed = 621), (b) plot assuming no cell-cycle delay for repair after the radiation (cells killed = 516), (c) plots assuming there is no cell-cycle phase-specific sensitivity for repair after the radiation ( in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003120#pcbi.1003120.e064" target="_blank">equation (12)</a>) (cells killed = 1361) and (d)plots when there is no DNA repair after the radiation ( for all doses in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003120#pcbi.1003120.e070" target="_blank">equation (13)</a>) (cells killed = 913).