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Published June 28, 2013 | public
Journal Article

Excitation of the six lowest electronic transitions in water by 9–20 eV electrons

Abstract

We report differential and integral cross sections for excitation of the ^(3)B_1, ^(1)B_1, ^(3)A_2, ^(1)A_2, ^(3)A_1 and ^(1)A_1 states of H_(2)O by 9–20 eV electrons. The measurements are taken by conventional differential electron energy loss spectroscopy techniques, while the calculations employ the Schwinger multichannel method within a ten-channel approximation. The new data are compared with previous experimental and theoretical results. The present measurements and calculations agree reasonably well both with each other and with prior theoretical efforts but show discrepancies with prior measurements. Reasons for those discrepancies are considered and discussed.

Additional Information

© 2013 IOP Publishing. Received 3 April 2013; in final form 30 April 2013; Published 24 May 2013. This work was sponsored by the US National Science Foundation under Grants PHY-0968873 and PHY-0968874. The work of VM and CW was supported by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy under grant DE-FG02-97ER14814 and made use of the Jet Propulsion Laboratory's Supercomputing and Visualization Facility.

Additional details

Created:
August 19, 2023
Modified:
October 24, 2023