Naslov
Composition of vacuum arc plasma

Autori
Radić, Nikola ; Šantić, Branko

Izvornik
IEEE Transactions on Plasma Science (0093-3813) 17 (1989); 683-687

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
plasma; vaccum arc; ionization potential

Sažetak
The composition of the vacuum arc plasma for five elements (Cd, Mg, Al, Ni, and Mo) is calculated by the Saha equation, which assumes local thermodynamic equilibrium conditions within the ionization region of the cathode spot(s). The lowering of the ionization potential due to the high density of charged particles is considered. By matching the computed and the measured plasma ionic composition, the electron density and the temperature are estimated. The experimental plasma compositions can be approximated only at a high electron density (10^19-10^21 cm^-3) and at electron temperatures in the range of a few electronvolts.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA