[Action of high and superhigh doses of fission neutrons and gamma quanta on the central noradrenergic formation of the brain--on the locus coeruleus (the blue spot)].

Most of the blue spot neurons of Wistar rats exhibited a pronounced central chromatolysis 24 h following irradiation with fission neutrons (above 100 Gy) and gamma-quanta (above 200 Gy). The changes in the mesencephalic nucleus of the trigeminal nerve were distinct on day 2 after 200 Gy gamma-irradiation. The number of the modified nervous cells in these regions was higher than that in other brain parts.