Mondal, S.Singh, R. K.Shanker, R.2015-11-242015-11-240021-9606http://hdl.handle.net/1885/16649An experimental evidence is reported on the observation of the Doppler effect in fluorine K-Auger line emitted from a core-ionized SF₆ molecule under an impact of 16keVelectrons. The emitting source of the Auger line is found to acquire a kinetic energy of 4.7±0.3keV. We propose that such large energy is released from the Coulomb repulsion taking place between F⁺ and SF₅⁺ fragment ions under influence of an intense focusing field of the incident electrons. In the presence of the Coulomb field of these ions, the Auger line obtains a polarizationP=76%±7%.The authors are thankful to the Department of Science and Technology DST, New Delhi for providing the financial support under a research Project No. SP/S2/L-08/2001.http://www.sherpa.ac.uk/romeo/issn/0021-9606..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 24/11/15). Copyright 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at https://doi.org/10.1063/1.21589952006-01-1710.1063/1.2158995