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Electron-Impact Spectroscopy

Kuppermann, Aron and Raff, L. M. (1963) Electron-Impact Spectroscopy. Discussions of the Faraday Society, 35 . pp. 30-42. ISSN 0366-9033. doi:10.1039/DF9633500030.

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A spectrometer has been devised for determining electronic energy levels of molecules by inelastic scattering of low-energy electrons. It permits the detection of optically forbidden electronic transitions as clearly as optically allowed ones in a routine manner. The spectrometer has been used to obtain excitation spectra for helium, argon, hydrogen and ethylene. For the first three of these substances, the spectra agree with previous experiments. For ethylene, in addition to optically allowed transitions, two forbidden ones occur at about 4-6 and 6-5eV. Variation of peak heights with incident electron beam energy suggest that the first corresponds to a triplet state but that the second does not.

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Additional Information:© 1963 Royal Society of Chemistry. Received 29th January 1963. The authors wish to thank Dr. Siao-fang Sun for his participation in the early stages of the development of the spectrometer here reported. Supported in part by funds from the U.S. Atomic Energy Commission.
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Atomic Energy CommissionUNSPECIFIED
Record Number:CaltechAUTHORS:20121023-150421053
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Official Citation:Kuppermann, A. and L. M. Raff (1963). "Electron-impact spectroscopy." Discussions of the Faraday Society 35: 30-42.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:35049
Deposited On:23 Oct 2012 22:37
Last Modified:09 Nov 2021 23:12

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