The Binary-Encounter-Bethe Model for Computation of Singly Differential Cross Sections Due to Electron-Impact Ionization

Garkoti, Pankaj; Luthra, Meetu; Goswami, Kanupriya; Bharadvaja, Anand; Baluja, K. L.

doi:10.3390/atoms10020060

Cited by 6 publications

(2 citation statements)

References 65 publications

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“…The difference between the two models is the exclusion of the differential dipole oscillator strengths (DOS), which is required for each molecular orbital of the target atom or molecule in the BED model. There are also several other versions of the BEB model to calculate the single differential cross-section [37][38][39] and a modified version of the BEB model which also accounts for the relativistic effects [40,41]. But, here, we have employed the simplified BEB model, which does not require values of continuum DOS, d f dW .…”

Section: Binary Encounter Bethe (Beb) Modelmentioning

confidence: 99%

Electron and Positron Impact Ionization of SF6−nHn(n = 0 − 6); {SCln, SFn−1Cl(n = 1 − 6)} and SF5X(X = CN, CFO)

Suriyaprasanth,

Choi,

Gupta

2023

Atoms

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We have calculated the electron and positron impact ionization of a set of molecules, SF6−nHn(n=0−6), SCln(n=1−6) , SFn−1Cl(n=1−6) and SF5X(X=CN,CFO), for which there are much fewer data in the literature. We have optimized the targets, and their electric polarizability is calculated along with their orbital binding and kinetic energies within the Hartree–Fock approximation that serve as input to the Binary Encounter Bethe (BEB) model for both electron and positron ionization. Most of the targets are investigated for the first time, apart from SF6, for which we compared our data with various experimental and theoretical data, giving us a good comparison.

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Section: Binary Encounter Bethe (Beb) Modelmentioning

confidence: 99%

Electron and Positron Impact Ionization of SF6−nHn(n = 0 − 6); {SCln, SFn−1Cl(n = 1 − 6)} and SF5X(X = CN, CFO)

Suriyaprasanth,

Choi,

Gupta

2023

Atoms

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“…The SDCS data can be further used to obtain averaged energy of secondary electrons, an important quantity in the studies involving plasma simulations and irradiation of molecules [112]. The BEB model has proved effective in computing SDCS [113]. The SDCS at incident electron energies 75 eV, 100 eV, and 200 eV are plotted in figure 11.…”

Section: Total and Partial Ionization Cross Sectionsmentioning

confidence: 99%

Electron impact cross-sections of tetraethyl silicate

Luthra¹,

Garkoti²,

Goswami³

et al. 2022

Plasma Sources Sci. Technol.

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The understanding of electron interactions with molecules in plasma is of vital importance from academic and technological point of view. The reliable electron collision data is required to model the electron and ion components of low-temperature and non-equilibrium plasmas. Various electron impact cross-sections like the differential, integral, momentum transfer, partial and total ionizations are reported for tetraethyl silicate (TEOS), a plasma relevant molecule in the energy range between ionization threshold and 5~keV. The elastic (differential, integral and momentum transfer) cross-sections are obtained by invoking the molecular approach and local potential approximation within the single center expansion formalism. The dissociative ionization cross-sections are reported with in the binary-encounter-Bethe (BEB) model formalism. The elastic and ionization cross-sections are summed incoherently to estimate total cross-sections. A good agreement is observed between the present and available results. This work validates the efficacy of the modified-BEB model in computing the partial ionization cross-sections.

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