POPULATION INVERSION BETWEEN THE GROUND AND FIRST EXCITED STATES IN A RECOMBINING HYDROGEN PLASMA

Furukane,U., Tsuji,Y., Oda,T.: 1982, J.Quant.Spectros.Radiat.Transfer, 27, 557.

Plasma conditions for generating a population inversion between the ground and first excited states in a recombining hydrogen plasma have been investigated on the basis of the CR model. Population inversion can be expected when three-body recombination plays a dominant role; the required regions of electron density and temperature are specified. It is shown that upper bounds exists for the ground-state population density at given electron density and temperature. Larger inversion densities can be obtained between the ground and first excited states than between excited levels. Numerical results are presented.


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