高电荷离子嵌入密集等离子体的原子过程研究

IF 1.7 Q3 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL Atoms Pub Date : 2023-12-15 DOI:10.3390/atoms11120158
A. Jha, Mayank Dimri, Dishu Dawra, Man Mohan
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引用次数: 0

摘要

在过去几年里,由于在物理学各分支中的一些应用,对高密度等离子体环境中的原子光谱和碰撞过程的研究获得了相当大的兴趣。多构型狄拉克-福克(MCDF)方法和相对论构型相互作用(RCI)技术结合了均匀电子气模型(UEGM)和分析等离子体筛选(APS)势,用于描述等离子体中带电粒子之间的相互作用。在相对狄拉克-库仑原子结构框架内,使用上述电势确定了束缚态和连续态波函数。本方法可用于计算等离子体环境中许多电子系统的电子结构、辐射特性、电子撞击激发截面和光离子化截面。本研究不仅扩展了我们对等离子体屏蔽效应的认识,还为天体物理和实验室等离子体的建模和诊断打开了大门。
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A Study of the Atomic Processes of Highly Charged Ions Embedded in Dense Plasma
The study of atomic spectroscopy and collision processes in a dense plasma environment has gained a considerable interest in the past few years due to its several applications in various branches of physics. The multiconfiguration Dirac-Fock (MCDF) method and relativistic configuration interaction (RCI) technique incorporating the uniform electron gas model (UEGM) and analytical plasma screening (APS) potentials have been employed for characterizing the interactions among the charged particles in plasma. The bound and continuum state wavefunctions are determined using the aforementioned potentials within a relativistic Dirac-Coulomb atomic structure framework. The present approach is applied for the calculation of electronic structures, radiative properties, electron impact excitation cross sections and photoionization cross sections of many electron systems confined in a plasma environment. The present study not only extends our knowledge of the plasma-screening effect but also opens the door for the modelling and diagnostics of astrophysical and laboratory plasmas.
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来源期刊
Atoms
Atoms Physics and Astronomy-Nuclear and High Energy Physics
CiteScore
2.70
自引率
22.20%
发文量
128
审稿时长
8 weeks
期刊介绍: Atoms (ISSN 2218-2004) is an international and cross-disciplinary scholarly journal of scientific studies related to all aspects of the atom. It publishes reviews, regular research papers, and communications; there is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodical details must be provided for research articles. There are, in addition, unique features of this journal: -manuscripts regarding research proposals and research ideas will be particularly welcomed. -computed data, program listings, and files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Scopes: -experimental and theoretical atomic, molecular, and nuclear physics, chemical physics -the study of atoms, molecules, nuclei and their interactions and constituents (protons, neutrons, and electrons) -quantum theory, applications and foundations -microparticles, clusters -exotic systems (muons, quarks, anti-matter) -atomic, molecular, and nuclear spectroscopy and collisions -nuclear energy (fusion and fission), radioactive decay -nuclear magnetic resonance (NMR) and electron spin resonance (ESR), hyperfine interactions -orbitals, valence and bonding behavior -atomic and molecular properties (energy levels, radiative properties, magnetic moments, collisional data) and photon interactions
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