Low-energy electron scattering from xenon

Gibson, James L.; Lun, D. R.; Allen, LJ; McEachran, R P; Parcell, L A; Buckman, Stephen

doi:10.1088/0953-4075/31/17/018

Cited by 30 publications

(37 citation statements)

References 40 publications

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“…(14), (15), (19) and (22) in comparison with the optical potential used in [25]. Also shown are experimental data [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63].…”

Section: A Momentum-transfer Cross Sectionmentioning

confidence: 99%

Contribution of electron-atom collisions to the plasma conductivity of noble gases

2017

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We present an approach which allows the consistent treatment of bound states in the context of the dc conductivity in dense partially ionized noble gas plasmas. Besides electron-ion and electronelectron collisions, further collision mechanisms owing to neutral constituents are taken into account. Especially at low temperatures T ≈ 1eV, electron-atom collisions give a substantial contribution to the relevant correlation functions. We suggest an optical potential for the description of the electronatom scattering which is applicable for all noble gases. The electron-atom momentum-transfer cross section is in agreement with experimental scattering data. In addition the influence of the medium is analysed, the optical potential is advanced including screening effects. The position of the Ramsauer minimum is influenced by the plasma. Alternative approaches for the electron-atom potential are discussed. Calculations of the electrical conductivity are compared with experimental data.

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“…(14), (15), (19) and (22) in comparison with the optical potential used in [25]. Also shown are experimental data [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63].…”

Section: A Momentum-transfer Cross Sectionmentioning

confidence: 99%

Contribution of electron-atom collisions to the plasma conductivity of noble gases

2017

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“…, Xe[55], CF 2[56], CH 4[57], C 2 F 4[58], C 2 H 4[59], C 4 F 8[60], C 4 H 8 O [61], C 4 H 8 O 2 [62], C 6 H 6 [63,64], C 6 F 6 [64], CO [65], CO 2 [66], SF 6 [67], H 2 [68], H 2 O [69], H 2 S [70], HCOOH [71], O 2…”

mentioning

confidence: 99%

Data Needs for Modeling Low-Temperature Non-Equilibrium Plasmas: The LXCat Project, History, Perspectives and a Tutorial

Carbone

Graef

Hagelaar

et al. 2021

Atoms

116

119

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Technologies based on non-equilibrium, low-temperature plasmas are ubiquitous in today’s society. Plasma modeling plays an essential role in their understanding, development and optimization. An accurate description of electron and ion collisions with neutrals and their transport is required to correctly describe plasma properties as a function of external parameters. LXCat is an open-access, web-based platform for storing, exchanging and manipulating data needed for modeling the electron and ion components of non-equilibrium, low-temperature plasmas. The data types supported by LXCat are electron- and ion-scattering cross-sections with neutrals (total and differential), interaction potentials, oscillator strengths, and electron- and ion-swarm/transport parameters. Online tools allow users to identify and compare the data through plotting routines, and use the data to generate swarm parameters and reaction rates with the integrated electron Boltzmann solver. In this review, the historical evolution of the project and some perspectives on its future are discussed together with a tutorial review for using data from LXCat.

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“…The present results are compared at 1, 5, 7.9, and 10 eV with the experimental DCS of Register et al [46], Weyhreter et al [13], Gibson et al [47], and Linert et al [48] DCS ( [30]. The present results are compared at 30, 60, and 90 • with the experimental DCS of Weyhreter et al [13] and Gibson et al [47] experimental DCS data [13,[46][47][48] in Figs. 4 and 5.…”

Section: Differential Cross Sectionsmentioning

confidence: 59%

“…The agreement has to be judged as good, being at least at the same level of consistency as more advanced calculations (see for example refs. [47,48] where the extensive comparison between experiments and theoretical calculations is done). In particular, MERT is in quite good accordance with high-angle-data measured by Linert et al [48] with magnetic angler changer in hardly accessible angular region (> 150 • ).…”

Section: Differential Cross Sectionsmentioning

confidence: 99%

Markov Chain Monte Carlo Effective Range Analysis of Low-Energy Electron Elastic Scattering from Xenon

Fedus

2015

Braz J Phys

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Modified effective range theory formulated as a Bayesian statistical model through the combination with Markov Chain Monte Carlo integration and fitting techniques is used to check the compatibility of different e − −Xe scattering data such as the total cross-sections, the momentum transfer cross-sections, and the differential cross-sections that were determined experimentally in the region of Ramsauer-Townsend minimum. On the basis of this predictive approach, the most probable value of the scattering length, (−6.51 ± 0.05)a 0 , is proposed. The present analysis suggests that the non-relativistic spinless effective range theory is suitable for the description of angular and energy dependencies of e − −Xe elastic scattering cross-sections below the threshold for first inelastic process.

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Low-energy electron scattering from xenon

Cited by 30 publications

References 40 publications

Contribution of electron-atom collisions to the plasma conductivity of noble gases

Contribution of electron-atom collisions to the plasma conductivity of noble gases

Data Needs for Modeling Low-Temperature Non-Equilibrium Plasmas: The LXCat Project, History, Perspectives and a Tutorial

Markov Chain Monte Carlo Effective Range Analysis of Low-Energy Electron Elastic Scattering from Xenon

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