Cross sections for elastic electron collisions on two hydrocarbon compounds: n-butane and benzene in the intermediate-energy range

• Published in: Journal of physics. B, Atomic, molecular, and optical physics Vol. 41; no. 18; pp. 185202 - 185202 (10)
• Main Authors: Sanches, I P, Sugohara, R T, Rosani, L, Lee, M-T, Iga, I
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 28.09.2008; Institute of Physics
• Subjects: Atomic and molecular collision processes and interactions; Atomic and molecular physics; Elastic scattering of electrons by atoms and molecules; Electron scattering; Exact sciences and technology; Physics; keV range; Crossed beams; Differential cross sections; Elastic scattering; Hydrocarbons; Electron-molecule collisions; Butane; eV range; Electron beams; Momentum transfer; Benzene; Angular distribution; Molecular beams; Cross sections; Comparative study; Organic compounds
• ISSN: 0953-4075; 1361-6455
• DOI: 10.1088/0953-4075/41/18/185202

In this work, we report an experimental-cross-section determination of elastic electron collisions with two hydrocarbon species, namely n-butane and benzene, in the intermediate-energy range. More specifically, absolute differential, integral and momentum-transfer cross sections are measured and reported in the (50-1000) eV range. The measurements were performed using a crossed electron beam-molecular beam geometry. The angular distributions of the scattered electrons were converted to absolute cross sections using the relative flow technique. Integral and momentum-transfer cross sections are derived from the measured differential cross sections. Additionally, elastic cross sections are also calculated using the independent atom model at the static-exchange-polarization level of approximation. A comparison of our measured data with calculated and other experimental results available in the literature is made.