| Abstract: | On the basis of the previously developed systemic model a study was made of the effect of dose rate on the survival of mammalian cells, RBE of small doses of heavy ions, and fractionation of radiation. There was a good agreement between theoretical and experimental results. The calculations showed that D10 (10% survival dose) is a function of dose rate P even for such ions as helium and boron which, however, exhibited an insignificant dependence of D10 on P (within the range from (10(-1) to 1 cGy/min). The influence of repair and the rate of cell division on RBE of radiation was determined. |
