Total cross section measurement for e-SF₆scattering down to 0.036 eV

Electron scattering on C6F6 and SF6 molecules

“…[8], while high energy data (75-4000 eV) by Zecca et al [9]. Most of these transmission experiments invoked the use of magnetic fields, either to discriminate between electrons of various energies [7,9] and/or to guide the projectile beam [6,7,8,9]. Resonant behaviour of experimental cross section was quite well reproduced by elastic integral cross section calculations of Dehmer et al [11], Gyemant et al [12] and Gianturco et al [13].…”

“…3, together with earlier absolute measurements [5,6,7,8,9]. Numerical total cross section data are listed in Table 2.…”

“…CF 4 [1,2]) or as gaseous insulating materials in the electrical industry (e.g. SF 6 , for references see [3,4]). For optimal design of gaseous insulators, there must be full identification and understanding of basic processes preventing transition of a gas medium from an insulating to conducting state under an imposed electric field, and this requires access to comprehensive and reliable sets of quantitative electron-impact cross section data.…”

“…Their results revealed the presence of a few distinct resonant structures. Total cross sections below 1 eV were determined by Ferch et al [6], and for energies between 0.25 and 25 eV by Romanyuk et al [7]. Intermediate energy total cross section (1-500 eV) was obtained by Dababneh et al.…”

Resonance and Threshold Phenomena in Low-Energy Electron Collisions with Molecules and Clusters

“…For comparison with the (nondissociative) attachment channel, we have included in Fig. 31 survey of Christophorou and Olthoff (2000 , Table 9) and due to Ferch et al (1982) at low energies. Below the onset for vibrational excitation of the symmetric stretch mode 1 ¼ 1, the total cross-section is 2.23 (90 meV) to 2.05 (35 meV) times higher than the fitted LPA attachment cross-section.…”