Numerical comparison between Ta and Nanbu models of Coulomb collisions

Wang, Huihui; Yang, Chao; Liu, Dagang; Meng, Lin; Liu, Laqun; Meng-Zhong, Xia

doi:10.7498/aps.62.015206

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…The second reason is the lack of analytically simpleto-use models of DCS, through which scattering angles can be randomly sampled by easy inversion instead of the timeconsuming accept-reject method. During the last two decades, different angular scattering models have been compared in various scenarios, such as electron transport study, ionization source terms in glow discharge, thermal runaway electrons in streamer discharge, and interstellar neutral atoms in the outer heliosheath [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. It was found that the angular scattering model is a non-trivial topic.…”

Section: Introductionmentioning

confidence: 99%

A tutorial overview of the angular scattering models of electron–neutral, ion–neutral, neutral–neutral, and Coulomb collisions in Monte Carlo collision modeling on low-temperature plasma

Yang

2024

Plasma Sources Sci. Technol.

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Over the past decade, massive modeling practices on low temperature plasma reveal that input data such as microscopic scattering cross sections are crucial to output macroscopic phenomena. In Monte Carlo collision (MCC) modeling on natural and laboratory plasma, angular scattering model is a non-trivial topic. Conforming to the pedagogical purpose of this overview, the classical and quantum theories of binary scattering, such as the commonly used Born-Bethe approximation are first introduced. Adequate angular scattering models, which MCC simulation can handle as input, are derived based on the above theories for electron-neutral, ion-neutral, neutral-neutral, and Coulomb collisions. The tutorial is not aiming to provide accurate cross section data by modern approaches in quantum theory, but to introduce analytical angular scattering models from classical, semi-empirical, and first-order perturbation theory. The reviewed models are expected to be readily incorporated into the MCC codes, in which scattering angle is randomly sampled through analytical inversion instead of numerical accept-reject method. Those simplified approaches are very attractive, and demonstrate in many cases the ability to achieve a striking agreement with experiments. Energy partition models on electron-neutral ionization are also discussed with insight from the binary-encounter-Bethe theory. This overview is written in a tutorial style, in order to serve as a guide for novice in this field, and at the same time as a comprehensive reference for practitioners in MCC modeling on plasma.

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Section: Introductionmentioning

confidence: 99%

A tutorial overview of the angular scattering models of electron–neutral, ion–neutral, neutral–neutral, and Coulomb collisions in Monte Carlo collision modeling on low-temperature plasma

Yang

2024

Plasma Sources Sci. Technol.

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show abstract

“…Fortunately, the boost of computers performances makes it possible to take PIC/MCC simulations. In recent decades, many scholars begin to focus on PIC/MCC simulations for gas discharges [2][3][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…[11] studied the atmosphere pressure breakdown by theory and experiments. Recently, based on the PIC platform CHIPIC [7][8][9]12], we developed a PIC/MCC code to simulate the argon microwave breakdown [13]. In this paper, this PIC/MCC code is introduced and enhanced in order to simulate the oxygen breakdown near the atmospheric pressure.…”

Section: Introductionmentioning

confidence: 99%

PIC/MCC Simulations for the Oxygen Microwave Breakdown at Atmospheric Conditions

Wang

Liu

et al. 2014

AMR

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In this paper, the code of Particle-In-Cell/Monte Carlo Collision (PIC/MCC) for oxygen microwave breakdown is developed. This code is based on the three dimensional particle-in-cell platform CHIPIC, and with a module for increasing the charge of each super-particle. With this PIC/MCC code, the multiplication rate of the electron density and the delay time in oxygen breakdown at atmospheric conditions are researched. The results show: the multiplication rate of the electron density is periodic, and its period is the half of the electric field period; the breakdown delay time in the gas breakdown increases while the frequency of electric field or the gas pressure increases.

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The effect of the H2 density on the electron energy distribution in H− ion sources

Meng

Liu

et al. 2013

Review of Scientific Instruments

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The electron energy distribution in H(-) ion sources is studied. By three-dimensional Monte Carlo simulations (3D-MCC) and cross sections of collisions, the crucial collisions in the JAEA 10A are chosen to develop theoretical models for the low electron temperature and the high electron temperature, respectively. The effects of the H2 density on the low electron temperature and the high electron temperature in H(-) ion sources are predicted with analytic expressions and verified by 3D-MCC. The results show that both the low and high electron temperatures become lower while n(H2) increases.

show abstract

Numerical comparison between Ta and Nanbu models of Coulomb collisions

Cited by 5 publications

References 12 publications

A tutorial overview of the angular scattering models of electron–neutral, ion–neutral, neutral–neutral, and Coulomb collisions in Monte Carlo collision modeling on low-temperature plasma

A tutorial overview of the angular scattering models of electron–neutral, ion–neutral, neutral–neutral, and Coulomb collisions in Monte Carlo collision modeling on low-temperature plasma

PIC/MCC Simulations for the Oxygen Microwave Breakdown at Atmospheric Conditions

The effect of the H2 density on the electron energy distribution in H− ion sources

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