Abstract
The possibility of blood grouping test utilizing hair samples previously irradiated with neutrons was investigated. Hair samples were collected from the individuals whose ABO blood group types were previously known by testing their blood cells. Irradiation of sample hair with neutrons was made for 1, 5, or 30 minutes from a pneumatic tube or for 5 hours in core, and integrated neutron doses were 4.7×1013, 2.3×1014, 1.4×1015, and 3.8×1016 n/cm2, respectively. The activity in blood grouping test of the samples was inclined to decrease and the rate of misidentification increased in proportion to the integrated neutron dose. It was concluded that the usual blood grouping test is possible after irradiation with 1015 n/cm2 of neutrons as the maximum dose.
