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相关论文: An improved set of electron-THFA cross sections re…

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We present a set of self-consistent cross sections for electron transport in gaseous tetrahydrofuran (THF), that refines the set published in our previous study [J. de Urquijo et al., J. Chem. Phys. 151, 054309 (2019)] by proposing…

The Pulsed Townsend experiment enables the extraction of relevant electron transport properties in different gases such as the electron drift velocity $W$ (or equivalently the mobility $\mu$), the longitudinal diffusion coefficient…

等离子体物理 · 物理学 2026-02-11 Mücahid Akbas

We review experimental and theoretical cross sections for electron scattering in nitric oxide (NO) and form a comprehensive set of plausible cross sections. To assess the accuracy and self-consistency of our set, we also review electron…

化学物理 · 物理学 2021-10-26 Peter W. Stokes , Ronald D. White , Laurence Campbell , Michael J. Brunger

We present a neural network for the solution of the inverse swarm problem of deriving cross sections from swarm transport data. To account for the uncertainty inherent to this somewhat ill-posed inverse problem, we train the neural network…

等离子体物理 · 物理学 2020-06-24 Peter W. Stokes , Daniel G. Cocks , Michael J. Brunger , Ronald D. White

This work presents swarm parameters of electrons (the bulk drift velocity, the bulk longitudinal component of the diffusion tensor, and the effective ionization frequency) in C$_2$H$_n$, with $n =$ 2, 4 and 6, measured in a scanning drift…

等离子体物理 · 物理学 2020-05-20 N R Pinhão , D Loffhagen , M Vass , P Hartmann , I Korolov , S Dujko , D Bošnjaković , Z Donkó

This work presents transport coefficients of electrons (bulk drift velocity, longitudinal diffusion coefficient, and effective ionization frequency) in CO2 measured under time-of-flight conditions over a wide range of the reduced electric…

等离子体物理 · 物理学 2017-05-24 M. Vass , I. Korolov , D. Loffhagen , N. Pinhao , Z. Donko

We investigate the spatially and temporally resolved electron kinetics in a homogeneous electric field in argon gas, in the vicinity of an emitting boundary. This (transient) region, where the electron swarm exhibits non-equilibrium…

等离子体物理 · 物理学 2020-01-08 Z. Donko , P. Hartmann , I. Korolov , V. Jeges , D. Bosnjakovic , S. Dujko

Electron-neutral scattering cross sections are fundamental quantities in simulations of low temperature plasmas used for many technological applications today. From these microscopic cross sections, several macro-scale quantities (called…

等离子体物理 · 物理学 2021-05-27 Vishrut Jetly , Bhaskar Chaudhury

The transport of excess electrons in liquid argon driven out of equilibrium by an applied electric field is revisited using a multi-term solution of Boltzmann's equation together with ab initio liquid phase cross-sections calculated using…

化学物理 · 物理学 2015-05-04 G. J. Boyle , R. P. McEachran , D. G. Cocks , R. D. White

We propose improvements to the Artificial Neural Network (ANN) method of determining electron scattering cross-sections from swarm data proposed by coauthors. A limitation inherent to this problem, known as the inverse swarm problem, is the…

计算物理 · 物理学 2023-11-23 Dale L Muccignat , Gregory G Boyle , Nathan A Garland , Peter W Stokes , Ronald D White

A "scanning" drift tube apparatus, capable of mapping of the spatio-temporal evolution of electron swarms, developing between two plane electrodes under the effect of a homogeneous electric field, is presented. The electron swarms are…

等离子体物理 · 物理学 2016-06-22 I. Korolov , M. Vass , N. Kh. Bastykova , Z. Donko

Detecting transient light curves (e.g., transiting planets) requires high precision data, and thus it is important to effectively filter systematic trends affecting ground based wide field surveys. We apply an implementation of the Trend…

天体物理仪器与方法 · 物理学 2016-06-29 Giri Gopalan , Peter Plavchan , Julian van Eyken , David Ciardi , Kaspar von Braun , Stephen R. Kane

For time projection chambers (TPCs) the accuracy in measurement of the track coordinates along the pad-row direction deteriorates with the drift distance (z): Resolution**2 = D**2 * z / N_eff, where D is the diffusion constant and N_eff is…

仪器与探测器 · 物理学 2016-02-02 Makoto Kobayashi

We present a review of the current experimental and theoretical understanding of electron transport in noble liquids. Special attention is given to recent measurements that coincide with the development of time projection chambers (TPCs)…

Terahertz (THz) field pulses can now be applied in Scanning Tunnelling Microscopy (THz-STM) junction experiments to study time resolved dynamics. The relatively slow pulse compared to the typical electronic time-scale calls for…

介观与纳米尺度物理 · 物理学 2023-08-24 Jakob Kjærulff Svaneborg , Aleksander Bach Lorentzen , Fei Gao , Antti-Pekka Jauho , Mads Brandbyge

The high order fluid model developed in the preceding paper is employed here to study the propagation of negative planar streamer fronts in pure nitrogen. The model consists of the balance equations for electron density, average electron…

等离子体物理 · 物理学 2013-11-13 A. H. Markosyan , S. Dujko , U. Ebert

Time-frequency analysis (TFA) techniques play an important role in the field of machine fault diagnosis attributing to their superiority in dealing with nonstationary signals. Synchroextracting transform (SET) and transient-extracting…

信号处理 · 电气工程与系统科学 2024-02-09 Yunlong Ma , Gang Yu , Tianran Lin , Qingtang Jiang

The static topological fractional charge (TFC) in condensed matter systems is related to the band topology and thus has potential applications in topological quantum computation. However, the experimental measurement of these TFCs in…

介观与纳米尺度物理 · 物理学 2022-08-29 Shu-guang Cheng , Yijia Wu , Hua Jiang , Qing-Feng Sun , X. C. Xie

Discharges in hydrogen at pressures above $1\,$kPa and a reduced electric field of $E/N=100-200\,$Td show a characteristic current oscillation in Pulsed Townsend experiments. This is explained by secondary emission of electrons from the…

等离子体物理 · 物理学 2018-02-09 Andreas Hösl , Christian Michael Franck

We theoretically investigate the steady-state transmission of continuous terahertz (THz) wave across a freestanding ferroelectric slab. Based on the Landau-Ginzburg-Devonshire theory of ferroelectrics and the coupled equations of motion for…

介观与纳米尺度物理 · 物理学 2024-08-07 Taorui Chen , Bo Wang , Yujie Zhu , Shihao Zhuang , Long-Qing Chen , Jia-Mian Hu
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