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IONIC-MOLECULAR REACTIONS OF HYDROGEN WITH NOBLE GASES,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The dependence of the yield of HeH and HeD ions on the energy of ionizing electrons in ionic-molecular reactions is investigated. It is shown that the relative yield of HeH ions decreases in the electron energy field from 25 to 17 ev, and the ratio HeHHeD is constant and approximately equal to 0.8 when the energy changes from 70 to 25 ev. The dependence of a cross section of a reaction on the vibrational state of an H2 ion is investigated in accordance with O. B. Firsovs ionic-molecular reaction theory. It is shown that an intermediate complex of this reaction decomposes into initial products with great probability, which decreases the HeH yield. The experimental dependence of the HeH yield on electron energy agrees with the theory. Author
APPROVED FOR PUBLIC RELEASE