Calculated responses to a thermal neutron beam for hamster and HeLa cells containing boron-10 at different concentrations

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Abstract
Cells were irradiated by a thermal neutron beam from a reactor. The survival curves were calculated according to the Katz and Sharma theory of track structure for heavy charged particles (1971). The thickness of cell specimens irradiated was taken to be 0.02 cm to enable the first collision dose to be used. The boron-10 concentrations were 0, 2, 5, 10, 20, 40 and 60 mu g per g of tissue. For comparison with the experiments of Davis et al. (1970) the effect of fast neutrons was taken into account. Values for relative biological effectiveness (RBE) are given. Isosurvival dose curves are defined which show the relation between neutron fluences and absorbed dose for different boron-10 concentrations.

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