Ionization equilibrium and the Saha equation

Author(s):  
G.S. Dragan ◽  
K.V. Kolesnikov

The ionization equilibrium in a heterogeneous strongly nonideal smoky plasmas containing condensed particles and an easily ionized addition of cesium atoms in the gas phase is considered. To determine the charges of particles, the nonlinear Poisson-Boltzmann equation was used, and for the ionization of atoms of the gas phase, the Saha equation taking into account the effect of the displacement of the ionization equilibrium. The dependences of the concentration of electrons and particle charges, as well as the interface between the regions of positive and negative charges of particles, on the concentration of cesium atoms and the concentration of aluminum oxide particles are obtained.


2017 ◽  
Vol 5 ◽  
pp. 1185-1189
Author(s):  
Maratbek Gabdullin ◽  
Tlekkabul Ramazanov ◽  
Zhuldyz Otarbay ◽  
Meruert Mamatova ◽  
Tomiris Ismagambetova

In this paper composition of a non-ideal lithium-hydrogen-uranium plasma was studied using the Saha equation. The results obtained in this paper can be used both in theoretical calculations and in the implementation of various experimental projects related to non-ideal plasma, in particular, for studying the thermodynamic properties of nuclear fuel detected in gaseous plasma form in nuclear jet engines. The degree of ionization of lithium, hydrogen, and uranium atoms was determined as the ratio of the number of free electrons to the total number of nuclei in the plasma. The composition of the ionized plasma was calculated in the framework of the system of the chemical model of plasma. A system of nonlinear Saha equations is obtained, which was solved by numerical methods. The calculations were carried out in the Debye approximation, taking into account the screening effects. As a result, the dependence of the degree of ionization of lithium, hydrogen, and uranium atoms on concentration and temperature at different percentages of these atoms in the substance is presented: 10-85-5%, 9-90-1%, respectively.


1990 ◽  
Vol 42 (4) ◽  
pp. 2461-2462 ◽  
Author(s):  
M. C. M. van de Sanden ◽  
P. P. J. M. Schram ◽  
J. A. M. van der Mullen ◽  
D. C. Schram

2019 ◽  
Vol 85 (1II)) ◽  
pp. 145-150
Author(s):  
A. S. Cherevko ◽  
A. A. Morozova

The degree and nature of the violation of local thermodynamic equilibrium (LTE) in the analytical zone of a plasma jet generated by an argon arc two-jet plasmatron (TJP) was estimated using an unconventional method based on determination of the nonequilibrium parameterbiequal to the ratio of the experimentally determined actual population of the energy level (ni) of the element to the population of the same level calculated from the Saha equation (nis). Partial ionizing deviation of plasma under study from the equilibrium state takes place only when low-lying atomic levels are overpopulated. The distinct dependence ofbion the ionization potential of the considered element (e.g., Ca, Mg, and Be) is shown. The results were interpreted in the light of the increasing role of radiation processes upon excitation of spectra in the argon arc two-jet plasmatron.


2020 ◽  
Vol 69 (9) ◽  
pp. 099101
Author(s):  
Tian-Hao Wang ◽  
Kun Wang ◽  
Yue Zhang ◽  
Lin-Cun Jiang

2005 ◽  
Vol 441 (1) ◽  
pp. 309-318 ◽  
Author(s):  
L. Mashonkina ◽  
T. Ryabchikova ◽  
A. Ryabtsev

1981 ◽  
Vol 23 (3) ◽  
pp. 236-240 ◽  
Author(s):  
I L Beigman ◽  
B N Chichkov ◽  
M A Mazing ◽  
A P Shevelko ◽  
A M Urnov

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