Cross sections for electron collisions with dimethyl ether
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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.
author list (cited authors)
Sugohara, R. T., Homem, M., Iga, I., de Souza, G., Machado, L. E., Ferraz, J. R., ... Lee, M. T.
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