Effect of population of higher rotational levels in the course of free expansion of a gas with clusters
Karelov N.V., Rebrov A.K., Sharafutdinov R.G.
The simultaneous occurrence of various relaxation processes, including condensation, can offer new possibilities for the development of laser media and for changing the properties or states of one of the components in the course of gas separation. Borzehko[1] has previously investigated the violation of the Boltzmann distribution over the rotational levels of nitrogen molecules when the nitrogen was freely expanded from a sonic nozzle. The presence of an "anomaly" in the population of the levels was indicated at large stagnation pressures, when a condensation can take place.
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![](/ps/1537/article_23627_800_head.png "<b>The simultaneous occurrence of various relaxation processes, including condensation, can offer new possibilities for the development of laser media and for changing the properties or states of one of the components in the course of gas separation. Borzehko<sup>[1]</sup> has previously investigated the violation of the Boltzmann distribution over the rotational levels of nitrogen molecules when the nitrogen was freely expanded from a sonic nozzle. The presence of an "anomaly" in the population of the levels was indicated at large stagnation pressures, when a condensation can take place.</b>")