Skin reactions in mouse by fractionated neutron irradiations with the same NSDn.

The results of three fractionations of neutron irradiation with the same NSDn were examined for skin reactions in mice. No significant differences were observed between these fractionations given two times a week (15 Gy/12 fractionations/39 days, 14.6 Gy/10 fractionations/32 days and 14.08 Gy/8 fractionations/25 days). The result suggests the value of a high dose per fraction given two times a week.