RESUMEN
This paper presents the results of measuring electric parameters of the skin of rats exposed to gamma-irradiation. Skin resistance increased, especially 7 and 14 days after exposure at a dose of 8.3 Gy and 3 days after exposure at a dose of 15 Gy. Skin resistance reached its peaks 1-2 days before the onset of postradiation death of animals. The fact that skin electrical properties vary after irradiation makes it possible to use them as biological predictors.
Asunto(s)
Respuesta Galvánica de la Piel/efectos de la radiación , Piel/efectos de la radiación , Animales , Relación Dosis-Respuesta en la Radiación , Femenino , Respuesta Galvánica de la Piel/fisiología , Dosis de Radiación , Ratas , Ratas Endogámicas , Fenómenos Fisiológicos de la Piel , Factores de TiempoRESUMEN
Conduction currents of the vacuum atmosphere near the spacecraft were measured in an electrostatic shielding and an electrostatic shielding module in electrostatic fields of about 10(7) Wt/m at a voltage of 3 X 10(5) V onboard Cosmos-605, 690, 732 and 936. The resultant conduction currents (less than or equal to 10(-9) A/m2) give evidence that the vacuum environment has high electroinsulation properties which contradicts the concepts derived from ground-based studies. Using up-to-date high-voltage devices, it appears possible to develop an efficient electrostatic shielding which will be of a low weight and a low power consumption.