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相关论文: Electron-impact ionization rates for neutral He, L…

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We generalize Tweed's seminal Born~I formalism for the electron-impact double ionization of two-electron atomic systems ($\text{H}^-$, $\text{He}$, $\text{Li}^+$) to non-extensive plasma environments described by Tsallis $q$-statistics. The…

综合物理 · 物理学 2026-05-28 Abdelmalek Boumali

Absolute cross sections for electron-impact single ionisation (EISI) of multiply charged tungsten ions (W$^{q+}$) with charge states in the range $ 11 \leq q \leq 18$ in the electron-ion collision energy ranges from below the respective…

原子物理 · 物理学 2020-01-08 D. Schury , A. Borovik, , B. Ebinger , F. Jin , K. Spruck , A. Müller , S. Schippers

We study static-field ionization of He-like ions with nuclear charge number in the range of $2\le Z \le 36$. Both the tunneling and over-the-barrier regimes are considered. We calculate the ionization rates by three approximate methods: a…

原子物理 · 物理学 2022-01-12 Erik Lötstedt , Marcelo. F. Ciappina , Kaoru Yamanouchi

An ion held in a radiofrequency trap interacting with a uniform buffer gas of neutral atoms develops a steady-state energy distribution characterised by a power-law tail at high energies instead of the exponential decay characteristic of…

原子物理 · 物理学 2018-05-09 I. Rouse , S. Willitsch

A self-consistent 1-D model was developed to study the effect of the electron energy distribution function (EEDF) on power deposition and plasma density profiles in a planar inductively coupled plasma (ICP) in the non-local regime (pressure…

等离子体物理 · 物理学 2016-09-08 Badri Ramamurthi , Demetre J. Economou , Igor D. Kaganovich

After an extensive assessment of the effective collision strengths available to model the He-like triplet of C V, N VI, O VII, Ne IX, Mg XI and Si XIII in collisionally dominated plasmas, new accurate effective collision strengths are…

天体物理仪器与方法 · 物理学 2016-07-27 Y. Rodríguez , E. Gatuzz , M. A. Bautista , C. Mendoza

We have calculated the electron impact partial and total ionization cross sections of important gaseous targets, such as Trifluoromethane (CHF$_3$), 1,1,1,2-Tetrafluoroethane $(\mathrm{C_2H_2F_4})$ or R134a, 1,1,1-Trifluoroethane…

化学物理 · 物理学 2024-08-26 Suriyaprasanth S , Dhanoj Gupta

The collision frequencies of electron-neutral-particle in the weakly ionized complex plasmas with the non-Maxwellian velocity distributions are studied. The average collision frequencies of electron-neutral-particle in the plasmas are…

等离子体物理 · 物理学 2021-08-31 Hong Wang , Jiulin Du , Rui Huo

We report ionization cross section measurements for electron impact single ionization (EISI) of Fe^11+$ forming Fe^12+ and electron impact double ionization (EIDI) of Fe^11+ forming Fe^13+. The measurements cover the center-of-mass energy…

天体物理仪器与方法 · 物理学 2015-03-17 M. Hahn , D. Bernhardt , M. Grieser , C. Krantz , M. Lestinsky , A. Mueller , O. Novotny , R. Repnow , S. Schippers , A. Wolf , D. W. Savin

An ion-beam compressed by an external electric force is characterized by a unique non-equilibrium distribution function. This is a special case of Tsallis distribution with entropy index q=2, which allows the system to possess appreciably…

等离子体物理 · 物理学 2017-09-27 Sreeja Loho Choudhury , R. K. Paul

In high-energy collisions the number of the created particles is far less than the thermodynamic limit, especially in small colliding systems (e.g. proton-proton). Therefore final-state effects and fluctuations in the one-particle energy…

高能物理 - 唯象学 · 物理学 2017-06-28 Gábor Bíró , Gergely Gábor Barnaföldi , Tamás Sándor Biró , Károly Ürmössy

We have investigated the effects of a non-thermal electron population on the ionization and recombination rates. The considered electron distribution is defined as a Maxwellian function below a break energy E_b and as a power-law function…

天体物理学 · 物理学 2009-11-06 D. Porquet , M. Arnaud , A. Decourchelle

We report the results of a numerical investigation, performed in the frame of dynamical systems' theory, for a realistic model of a ionic crystal for which, due to the presence of long--range Coulomb interactions, the Gibbs distribution is…

统计力学 · 物理学 2020-08-04 Andrea Carati , Luigi Galgani , Fabrizio Gangemi , Roberto Gangemi

This is a concise introduction to the topic of nonextensive Tsallis statistics meant especially for those interested in its relation to high energy proton-proton, proton-nucleus, and nucleus-nucleus collisions. The three types of Tsallis…

高能物理 - 唯象学 · 物理学 2021-10-11 Joseph I. Kapusta

We study the collision frequency of electron-neutral-particle in the weakly ionized plasma with the power-law velocity q-distribution and derive the formulation of the average collision frequency. We find that the average collision…

等离子体物理 · 物理学 2020-03-25 Futao Sun , Jiulin Du

We investigate the possibility of diagnosing the degree of departure from the Maxwellian distribution using single-ion spectra originating in astrophysical plasmas in collisional ionization equilibrium. New atomic data for excitation of Fe…

太阳与恒星天体物理 · 物理学 2014-11-05 J. Dudík , G. Del Zanna , H. E. Mason , E. Dzifčáková

We consider weakly ionized plasma where frequent elastic scattering of electrons on neutrals change the individual acts and the rate of electron-electron collisions significantly. In this case, the kinetics of electron thermalization is…

等离子体物理 · 物理学 2021-03-31 B. Breizman , G. Stupakov , G. Vekstein

We describe the influence of electron-impact multiple ionization (EIMI) on the ionization balance of collisionally ionized plasmas. We are unaware of any previous ionization balance calculations that have included EIMI, which is usually…

太阳与恒星天体物理 · 物理学 2015-06-23 Michael Hahn , Daniel Wolf Savin

Accurate cross section data for electron impact ionization (EII) are needed in order to interpret the spectra of collisionally ionized plasmas both in astrophysics and in the laboratory. Models and spectroscopic diagnostics of such plasmas…

原子物理 · 物理学 2015-06-18 Michael Hahn

The quantum diffraction and symmetry effects on the entanglement fidelity (EF) of different elastic electron-electron, ion-ion and electron-ion interactions are investigated in non-ideal dense plasma. The partial wave analysis and an…

等离子体物理 · 物理学 2019-08-19 Ramin Roozehdar Mogaddam , Nasser Sepehri Javan , Kurosh Javidan , Hosein Mohammadzadeh
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