The new screening characteristics of strongly non-ideal and dusty plasmas. Part 1: Single-component systems

Mihajlov, A. A.; Vitel, Y.; Ignjatović, Lj. M.

doi:10.1134/s0018151x08060011

Cited by 8 publications

(64 citation statements)

References 27 publications

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“…As in [1,2], only such cases are studied here for which the probe particle can represent one of the charged particles of the system S in , for example, when Z p = Z 1 , Z 2 and Z e . Two ion cases are denoted below with (i1) and (i2), and the electron case-with (e), while the corresponding auxiliary systems are denoted with S …”

Section: The System Properties and Conditionsmentioning

confidence: 99%

“…In the usual way, U (1,2) and U (e) are treated as approximations to the mean potential energies of the ion and electron in the initial system S in .…”

Section: The System Properties and Conditionsmentioning

confidence: 99%

“…It can be shown that on the basis of the procedure that was developed and described in detail in [1,2] for the case of a system that is electro-neutral as a whole, it is possible to switch from Poisson's equation to the equation for the potential Φ (1,2,e) (r), which is more suitable for further consideration. This equation is given by…”

Section: The System Equationsmentioning

confidence: 99%

“…Thematically, this work is the natural extension of the research on plasma's inner electrostatic screening, the results of which are presented in the papers [1][2][3]. In these papers, the single-and two-component systems are discussed with their properties in the region of higher non-ideality degree.…”

Section: Introductionmentioning

confidence: 99%

“…The developed theory is also applicable to a wider area of plasma parameters. The order of its exposing mostly follows that which is presented in our previous papers [1][2][3].…”

mentioning

confidence: 99%

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The Screening Characteristics of the Dense Astrophysical Plasmas: The Three-Component Systems

Ignjatović

Srećković

Dimitrijević

2017

Atoms

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Abstract:As the object of investigation, astrophysical fully ionized electron-ion plasma is chosen with positively charged ions of two different kinds, including the plasmas of higher non-ideality. The direct aim of this work is to develop, within the problem of finding the mean potential energy of the charged particle for such plasma, a new model, self-consistent method of describing the electrostatic screening. Within the presented method, such extremely significant phenomena as the electron-ion and ion-ion correlations are included in the used model. We wish to draw attention to the fact that the developed method is suitable for astrophysical applications. Here we keep in mind that in outer shells of stars, the physical conditions change from those that correspond to the rare, practically ideal plasma, to those that correspond to extremely dense non-ideal plasma.

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Section: The System Properties and Conditionsmentioning

confidence: 99%

“…In the usual way, U (1,2) and U (e) are treated as approximations to the mean potential energies of the ion and electron in the initial system S in .…”

Section: The System Properties and Conditionsmentioning

confidence: 99%

Section: The System Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The developed theory is also applicable to a wider area of plasma parameters. The order of its exposing mostly follows that which is presented in our previous papers [1][2][3].…”

mentioning

confidence: 99%

See 3 more Smart Citations

The Screening Characteristics of the Dense Astrophysical Plasmas: The Three-Component Systems

Ignjatović

Srećković

Dimitrijević

2017

Atoms

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The Calculation of the Photo Absorption Processes in Dense Hydrogen Plasma with the Help of Cut-Off Coulomb Potential Model

Sakan¹

2010

J. Phys.: Conf. Ser.

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Extensive work was done in the application of a cutoff Coulomb model on the description of the optical processes of the photo ionization and inverse bremsstrahlung. Presented work deals with a usage of a cutoff Coulomb model pseudo potential for the calculation of the optical absorption process in dense hydrogen plasma as a entirely quantum mechanical process. Although the mentioned processes are strongly influenced by the collective process in dense plasma, the used pseudo potential enables to model the described interaction with the plasma system as a binary process. There are several advantages of such approach; the existence of the exact analytical solutions for the wave functions in the described potential enables to eliminate one of the several sources of numerical error. Also, more complex processes of the interaction inside plasma could be considered, and they have been added in presented work. The work on description of such processes has been started. The collective phenomena of the plasma are here described as an additional shifting and broadening of a bond states levels. Furthermore, with the adding of mentioned broadening and additional shifting of the bond states as free external parameters the good agreement between the analyzed experimental data and our model solutions occurs. The method of determination of the cutoff radius was developed and applied in our considerations. The presented model is a good approach for the description of dense hydrogen plasma of moderate and high non-ideality. It presents an easily extendable model, in which is easy to introduce additional processes and effects.

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Modeling of continuous absorption of electromagnetic radiation in dense partially ionized plasmas

Mihajlov¹,

Sakan²,

Srećković³

et al. 2011

J. Phys. A: Math. Theor.

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A new modeling way of describing the continuous absorption of electromagnetic (EM) radiation in dense partially ionized hydrogen plasma is tested in this work. It is shown that the obtained results give a possibility of calculating spectral absorption coefficients which characterize the relevant absorption processes in partially ionized hydrogen plasmas with electron densities N e ∼ 10 19 cm −3 and temperatures T ≈ 2 · 10 4 K. A key parameter of the used procedure is determined empirically. The calculation method is applied to wavelength region 300nm < λ < 500nm. The presented results can be of interest for dense laboratory plasmas as well as for partially ionized layers of different stellar atmospheres.

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The new screening characteristics of strongly non-ideal and dusty plasmas. Part 1: Single-component systems

Cited by 8 publications

References 27 publications

The Screening Characteristics of the Dense Astrophysical Plasmas: The Three-Component Systems

The Screening Characteristics of the Dense Astrophysical Plasmas: The Three-Component Systems

The Calculation of the Photo Absorption Processes in Dense Hydrogen Plasma with the Help of Cut-Off Coulomb Potential Model

Modeling of continuous absorption of electromagnetic radiation in dense partially ionized plasmas

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