Cross sections for electron collisions with dimethyl ether Academic Article uri icon

abstract

  • We report a joint theoretical-experimental investigation of electron collision with dimethyl ether (DME) in the low- and intermediate-energy ranges. Experimental absolute differential, integral, and momentum-transfer cross sections for elastic e--DME scattering are reported in the 100-1000 eV energy range. Our measurements were performed using a crossed electron-beam-molecular-beam geometry. The angular distribution of the scattered electrons was converted to absolute cross section using the relative flow technique. Theoretically, elastic differential, integral, and momentum-transfer cross sections, as well as the grand-total and total absorption cross sections for electron collision with DME are calculated in the 1-1000 eV energy range. A single-center-expansion technique combined with the Pad approximant method is used in our calculations. A comparison between the present experimental and theoretical data shows very good agreement. Moreover, comparison with theoretical and experimental data for e--ethanol (an isomer of DME) scattering shows interesting isomeric effects. 2013 American Physical Society.

published proceedings

  • Physical Review A

author list (cited authors)

  • Sugohara, R. T., Homem, M., Iga, I., de Souza, G., Machado, L. E., Ferraz, J. R., ... Lee, M. T.

citation count

  • 20

complete list of authors

  • Sugohara, RT||Homem, MGP||Iga, I||de Souza, GLC||Machado, LE||Ferraz, JR||dos Santos, AS||Brescansin, LM||Lucchese, RR||Lee, MT

publication date

  • August 2013