Cherenkov Effect in Ionospheric E Layer Plasma for Oxygen-Ion

Cherenkov radiation is an electromagnetic Radiation that occurs in different medium depending on the physical properties of the medium”. The sufficient scientific condition for the phenomenon to be occurred is that the velocity of charged particles moving with should be greater than that of the electromagnetic radiation there (generally speaking in most cases this Radiation is in the UV range of emission depending on the particles velocity and yet again the properties of the medium”). In this paper Cherenkov effect considered in the ionospheric E layer plasma and it showed that the velocity of charged particles in this plasma is greater than that of the phase velocity of electromagnetic radiation. Then the relation between Cherenkov frequency and the height and temperature of this plasma studied. Also the Cherenkov angle for the oxygen ion that emits Cherenkov radiation is calculated. In this plasma as an important wave we considered only the oxygen-ion wave.