ELECTRON ENERGY-LOSS SPECTROSCOPY OF ACETONE VAPOR
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Publisher:Ohio State University
The electron energy-loss spectrum of acetone vapor from 0 to 12 eV was obtained for 100 eV incident electrons scattered in the forward direction and analyzed with a resolution of 21 meV. Observed transition energies agree closely with optical data in the visible and ultraviolet regions. A new Rydberg series converging to the lowest ionization potential (9.7 eV) is identified. The differential oscillator strength distribution may be derived from the energy loss data by normalization to absolute photoabsorption cross sections measured above 9.7 eV. Oscillator strengths determined in this manner compare favorably with optically determined values throughout the energy-loss range investigated. This work was performed under the auspices of the U.S. Atomic Energy Commission.
Author Institution: Argonne National Laboratory; National Bureau of Standards
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