Some properties of high-pressure and low temperature thermal krypton plasma with sodium as additive |
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| Authors: | N V Novaković S M Stojilković B S Milić |
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| Institution: | (1) Faculty of Philosophy, Dept. of Physics, University of Ni , P.O.B. 91, 18001 Ni, Yugoslavia;(2) Faculty of Electronics, University of Ni, P.O.B. 73, 18001 Ni, Yugoslavia;(3) Faculty of Physics, University of Belgrade, P.O.B. 368, 11001 Belgrade, Yugoslavia |
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| Abstract: | Results of a theoretical evaluation of electrical and thermal conductivities and their ratio (the Wiedemann-Franz ratio), regarded as functions of pressure and temperature, for high-pressure (0.1 MPa to 2.5 MPa) and low-temperature (2000 K to 20000 K) krypton plasma containing up to 10% of added sodium are presented. The numerical calculation were based on the assumption that the system is kept under constant pressure and temperature and that it attained local thermodynamical equilibrium. Use was made of a previously derived modified Debye radius which allowed to regard the plasmas investigated as weakly non-ideal and to calculate their composition from a set of Saha equations for the relevant ionization stages of both Kr and Na. It was found that the addition of as little as 1% of Na profoundly alters the properties of the plasma. |
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