Parametric description for the cumulative distribution function (CDF) describing the uncertainty in maximum values of the relative biological effectiveness (RBE) factor.

Mean RBE factor values and standard deviations (SD), and values of parameters with SDs that result from fits of the logistic equation, CDF = A/(1+(RBE/R0)B) to distributions of RBEs from mouse experiments of Table 2 for RBEmax and RBEγAcute. Also shown is the central estimate of the Ʃ0/αγ parameter found after considering the application of the quality factor (QF) function of Equation (4) or (8) to the average RBE from charged particles produced by fission neutrons or Fe particles (as described in the text).Parametric description for the cumulative distribution function (CDF) describing the uncertainty in maximum values of the relative biological effectiveness (RBE) factor.