The methods of irradiation dose fractionation and rate change used in studying the capacity for the postradiation repair of CFU-s forming splenic colonies after 8 and 12 days following bone marrow cell transplantation]

The method of dose fractionation and decreasing the dose-rate using "macro-" and "microcolonies" techniques was used to study the ability of CFU-S-8 and CFU-S-12 to repair sublethal radiation damages after irradiation thereof within the bodies of bone-marrow donors and recipients. A more committed CFU-S-8 population was found to surpass a younger and less committed CFU-S-12 population with respect to their repairability.