The Ionization of Water Vapor by Electron Impact
- 15 January 1933
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 43 (2), 116-120
- https://doi.org/10.1103/physrev.43.116
Abstract
Products and processes of ionization in water vapor have been studied with the apparatus previously used by Smyth and Stueckelberg for other gases. Results of previous investigators have been confirmed and extended. Two I. P.'s for are reported, 12.7, and 16.0 volts. Other positive ions in much smaller numbers appear as follows: at 18.9, O at 18.9, with , at 18.5, at 33.5, and (very weak). The probable processes of ionization involved are discussed. Negative ions observed include O, , and . Lozier's observation of a critical electron speed for the formation of is confirmed and discussed.
Keywords
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