Analysis of survival-curve data for heat plus irradiation in terms of the multitarget, multitarget with initial slope, and alpha, beta equations.

Survival values have been computed for heat plus radiation data using the three most common radiation survival models: multitarget, multitarget with initial slope, and linear quadratic. By chi 2 analysis, all three models provide an equally good fit to the experimental data. When the survival values are compared, the linear quadratic model provides a slightly better fit in the shoulder region, while the multitarget models provide a slightly better fit in the exponential region.