Electron interactions with tetrahydrofuran

Transport properties of electron swarms in tetrahydrofuran under the influence of an applied electric field

“…In our proposed set, we have characterized the rotational process by a single (lumped) ICS with a representative threshold energy of 1.205 meV. The present ICS is compared with corresponding results extracted by Fuss et al [25] and with a similar Born-dipole calculation from Chiari et al [26]. Where an energy overlap is found, the present rotational cross sections are in good agreement with those of Chiari et al, as seen in Fig.…”

“…We restrict ourselves to the energy region less than 300 eV. Above this energy, agreement between theory and experiment is sufficiently good that theory can, in general, be used [25,26]. We focus on the development of a set of cross sections for implementation into a Boltzmann equation transport theory (or Monte Carlo simulations) and hence restrict ourselves to discussions of the integral cross sections (ICSs), while the differential cross sections are sufficiently represented through implementation of the integrated forms including the momentum transfer cross sections (MTCSs).…”

“…The GTCS has been extensively studied both experimentally [7,8] and computationally [25,26]. We propose a GTCS based on the most recent set of Chiari et al [26], although we have modified the Chiari et al data to account for the resonance at approximately 6 eV that has been observed in the previous experimental measurements [7,8].…”

“…These have been complemented by theoretical calculations using the R matrix [21], Schwinger variational method [22] (more recently accounting for the long-range scattering by the strong permanent electric dipole of THF [13]), and the independent atom model (IAM-SCAR) [19,25,26]. Multiple elastic ICSs were sourced from Fuss et al [19], Colyer et al [9], Baek et al [12], Dampc et al [14], and Gauf et al [13] in order to construct the proposed elastic ICS by capturing the relative strengths of the various approaches.…”

“…Experimentally, there have been measurements of the total [7,8], (quasi-) elastic [9][10][11][12][13][14], vibrational [10,15,16], electronic excitation [17,18], and ionization [19,20] cross sections over a range of energies. Likewise, theoretical treatments using R-matrix methods [21], the Schwinger variational method [13,22], the complex Kohn variational method [23] and binary encounter-Bethe approach [24], the independent atom model (IAM) [24], and the recent IAM-screening corrected additivity rule (SCAR) treatment [25,26] have provided complementary information to the experimental data. The levels of agreement vary between the various techniques and theories for many of the processes, and this paper aims to propose cross sections for THF utilizing the strengths of the various approaches where possible.…”