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Axial emission profiles in a parallel plate dc micro discharge (feedgas: argon; discharge gap d=1mm; pressure p=10Torr) were studied by means of time resolved imaging with a fast ICCD camera. Additionally, volt-ampere (V-A) characteristics…

Plasma Physics · Physics 2015-05-28 T Kuschel , B Niermann , I Stefanović , M Böke , N Škoro , D Marić , Z Lj Petrović , J Winter

We report on the successful operation of a double phase Liquid Argon Large Electron Multiplier Time Projection Chamber (LAr LEM-TPC) equipped with two dimensional projective anodes with dimensions 10$\times$10 cm$^2$, and with a maximum…

Instrumentation and Detectors · Physics 2015-06-18 C. Cantini , L. Epprecht , A. Gendotti , S. Horikawa , S. Murphy , G. Natterer , L. Periale , F. Resnati , A. Rubbia , F. Sergiampietri , T. Viant , S. Wu

Lightning discharge is a complicated process with relevant physical scales spanning many orders of magnitude. In an effort to understand the electrodynamics of lightning and connect physical properties of the channel to observed behavior,…

Space Physics · Physics 2016-05-31 B. E. Carlson , C. Liang , P. Bitzer , H. Christian

The effect of driving frequency in the range of 13.56 MHz to 73 MHz on electron energy distribution and electron heating modes in a 50 mTorr capacitively coupled argon plasma discharge is studied using 1D-3V particle-in-cell simulations.…

The room temperature liquid metal related electronics has been found important in a wide variety of emerging areas over the past few years. However, its failure features under high electrical current densities are not clear until now. Here…

Materials Science · Physics 2013-09-04 Rongchao Ma , Cangran Guo , Yixin Zhou , Jing Liu

We investigate the fracture of Li-ion battery cathodic particles using a thermodynamically consistent phase-field approach that can describe arbitrarily complex crack paths and captures the full coupling between Li-ion diffusion, stress,…

Materials Science · Physics 2019-08-23 Ataollah Mesgarnejad , Alain Karma

We study the electron scatter from the freely movable spin-$\frac{1}{2}$ particle in the presence of a linearly polarized laser field in the first Born approximation. The dressed state of electrons is described by a time-dependent wave…

Atomic Physics · Physics 2014-09-19 Ai-Hua Liu , Shu-Min Li

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…

Plasma Physics · Physics 2018-02-09 Andreas Hösl , Christian Michael Franck

In this work we report the results of imaging and spectroscopic measurements of optical emission spectrum of negative nanosecond-pulsed cryogenic discharge in liquid nitrogen. With the application of lower electric fields, the discharge…

Plasma Physics · Physics 2024-10-10 Danil Dobrynin , Alexander Fridman

The lack of accurate low-energy electron scattering cross sections for liquid water is a substantial source of uncertainty in the modelling of radiation chemistry and biology. The use of existing amorphous ice scattering cross sections for…

Soft Condensed Matter · Physics 2020-05-27 Ruth Signorell

In this paper we study the lateral instability of streamer discharges using a continuum discharge model. We observe similarities to Kelvin-Helmholz instability in fluids. In strong electric fields, lateral long wave length perturbations can…

Plasma Physics · Physics 2021-05-11 M. Arrayás , M. A. Fontelos

We have previously reported on the construction and successful operation of the novel double phase Liquid Argon Large Electron Multiplier Time Projection Chamber (LAr LEM-TPC). This detector concept provides a 3D-tracking and calorimetric…

Instrumentation and Detectors · Physics 2015-03-17 A. Badertscher , A. Curioni , L. Knecht , D. Lussi , A. Marchionni , G. Natterer , F. Resnati , A. Rubbia , T. Viant

Electron-beam propagation experiments have been used to determine the energy and angle dependence of electron-electron (ee) scattering a two-dimensional electron gas (2DEG) in a very direct manner by a new spectroscopy method. The…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. V. Yanovsky , H. Predel , H. Buhmann , R. N. Gurzhi , A. N. Kalinenko , A. I. Kopeliovich , L. W. Molenkamp

The ALICE (A Large Ion Collider Experiment) Time Projection Chamber (TPC) at CERN LHC is presently equipped with Multi Wire Proportional Chambers (MWPCs). A gating grid prevents ions produced during the gas amplification from moving into…

Instrumentation and Detectors · Physics 2017-06-28 Alexander Deisting , Chilo Garabatos

The electron scattering has been a vital tool to study the properties of the target nucleus for over five decades. Though, the particular interest on $^{40}$Ar nucleus stemmed from the progress in the accelerator-based neutrino-oscillation…

A theory of electron detachment from atoms or negative ions by a superposition of a static and a laser (or, more generally, ac) fields, parallel to each other, is developed in the case when the photon energy and the field amplitude are much…

Atomic Physics · Physics 2012-10-30 A. G. Kofman , G. P. Berman

Analysis of space-charge effects on electron emission typically makes some assumption of continuity and smoothness, whether this is continuity of charge as in the classical derivation of the Child-Langmuir current, or the mean-field…

Accelerator Physics · Physics 2026-03-06 Arnar Jonsson , Kristinn Torfason , Andrei Manolescu , Agust Valfells

We apply particle based kinetic simulations to explore the characteristics of a low-pressure gas discharge driven by high-voltage ( $\sim$ kV) pulses with alternating polarity, with a duty cycle of $\approx$ 1% and a repetition rate of 5…

Liquid Argon Time Projection Chamber (LArTPC) technology is commonly utilized in neutrino detector designs. It enables detailed reconstruction of neutrino events with high spatial precision and low energy threshold. Its field response (FR)…

Instrumentation and Detectors · Physics 2023-05-03 S. Martynenko , F. Pietropaolo , B. Viren , X. Qian , H. Chen , S. Gao , W. Gu , J. Jo , S. Kettell , Y. Li , H. Liu , N. Nayak , B. Yu , H. Yu , C. Zhang , U. Kose , F. Resnati , S. Tufanli , F. Boran , F. Dolek

The capabilities of liquid argon time projection chambers (LArTPCs) to reconstruct the spatial and calorimetric information of neutrino events have made them the detectors of choice in a number of experiments, specifically those looking to…

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