Vos, M.Weigold, E.Moreh, R.2015-12-092015-12-090021-9606http://hdl.handle.net/1885/38440We compare the area, peak separation, and width of the H and O elastic peak for light and heavy water, as observed in spectra of keV electrons scattered over large angles. Peak separation is well reproduced by the theory, but the O:H area ratio is somewhat larger than expected and is equal to the O:D area ratio. Thus no anomalous scattering from H was observed. Only minor differences are observed for scattering from a gaseous or a solid target. The extracted mean kinetic energy of H and D agreed within 5% with the calculated ones for ice. For the more difficult vapor measurements agreement was on a 12% level. A preliminary attempt to extract the O kinetic energy in ice agreed within 10% with the calculated values.This work was made possible by financial support of the Australian Research Council.11 pages© 2013 American Institute of Physics Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in The Journal of Chemical Physics and may be found at http://doi.org/10.1063/1.4775810 http://publishing.aip.org/authors/copyright-reuse http://www.sherpa.ac.uk/romeo/issn/0021-9606 Author can archive publisher's version/PDF (Sherpa/Romeo as of 9/12/2015).kineticselasticityelectronsicesteam201310.1063/1.47758102016-02-24