Inactivation of Chinese hamster V79/4(AH1) and HeLa cells by 24 keV neutrons.

SummaryCell survival studies have been carried out with a filtered neutron beam providing a nearly pure, high intensity source of 24 keV neutrons. These suggest that 24 keV neutrons behave as high LET radiation. The RBE at 37 per cent survival was approximately 2·2 for V79 Chinese hamster cells while HeLa cells gave a value of 2·9.