Electron-induced fluorescence of carbon dioxide clusters. I. Free jet of condensing gas |
| |
Authors: | S Ya Khmel’ R G Sharafutdinov |
| |
Institution: | (1) Institute of Thermal Physics, Siberian Division, Russian Academy of Sciences, 630090 Novosibirsk, Russia |
| |
Abstract: | In measurements in jets of condensing gases, problems arise in interpreting the results obtained with the use of electron-beam
fluorescence diagnostics, in particular due to the possible contribution of clusters to the radiation from the jet. Data on
the fluorescence are obtained by comparing the optical and x-ray emission excited by an electron beam with calculations of
the amount of condensate. Studies are made on the fluorescence of CO2 clusters excited by an electron beam in a free jet of the condensing carbon dioxide gas. It is found that the clusters radiate
at wavelengths of the monomers extremely effectively per molecule, almost as much as the free molecules, and the dependence
on size is quite weak. It is shown that with electron-impact excitation the emission of the clusters comes about as the result
of the ejection of excited molecules from the cluster as the latter fragments. The results of this investigation of the fluorescence
of CO2 clusters lead to conclusions regarding the use of electron beam fluorescence diagnostics for measurements in free jets with
CO2 clusters.
Zh. Tekh. Fiz. 67, 43–52 (March 1997) |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|