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Wyszukujesz frazę "Musielok, J." wg kryterium: Autor


Wyświetlanie 1-8 z 8
Tytuł:
Stark Width Measurements of Neutral Argon Lines and Comparison with Analogous Transitions for Homologous Atoms
Autorzy:
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/1931551.pdf
Data publikacji:
1994-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.-n
32.70.Jz
52.25.Rv
Opis:
Half widths of 24 ArI lines from a wide interval of the spectrum and from a large range of excitation energies were measured. A wall-stabilized arc at atmospheric pressure was applied as a plasma generator. Electron densities of the plasma of the order of 10$\text{}^{16}$-10$\text{}^{17}$ cm$\text{}^{-3}$ were obtained on the basis of hydrogen H$\text{}_{β}$ line broadening measurements. The measured widths of ArI lines, normalized to au electron density of 10$\text{}^{16}$ cm$\text{}^{-3}$ were compared with experimental data for analogous transitions in other noble atoms.
Źródło:
Acta Physica Polonica A; 1994, 86, 3; 315-326
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regularities of Line Strengths in Spectra of NI, FI, and NeII
Autorzy:
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/1968961.pdf
Data publikacji:
1998-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.30.-r
32.70.Cs
Opis:
Recently experimentally determined individual (fine structure) line strengths for the spectra of NI, FI, and NeII are analysed, searching for regularities resulting from similarities in the structure of these species. Strengths of spectral lines of the prominent 3s-3p and 3p-3d transition arrays are investigated. The absolute scales of these experimentally derived data are based on independently determined lifetimes for excited levels of NI, FI, and NeII. The simple Coulomb approximation method was applied for calculations of the matrix elements for the "jumping" electron in order to obtain an average trend in line strengths of the studied emitters. In the case of the isoelectronic species (FI, NeII), additionally the trend resulting from the perturbation theory is taken for comparison. Except the trend study of the absolute scale, the strengths of individual lines within analogous multiplets (in a relative scale) are investigated and compared with data resulting from LS coupling scheme and with semi-empirical calculations.
Źródło:
Acta Physica Polonica A; 1998, 94, 1; 13-23
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
J-File Sum Rule Tests for the 3s-3p Transition Array in Singly Ionized Nitrogen - Comparison of Measured and Calculated Data
Autorzy:
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/2043660.pdf
Data publikacji:
2005-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.30.-r
39.30.+w
Opis:
A critical analysis of available experimental and theoretical data on transition probabilities for spectral lines of singly ionized nitrogen was performed. J-file sum rule tests for the 3s-3p triplet supermultiplet in NII were performed on the basis of recently calculated and measured line strengths. It is shown that the inclusion of intersystem transitions in the analysis leads to a better agreement of the data with the J-file sum rule prediction.
Źródło:
Acta Physica Polonica A; 2005, 108, 3; 449-456
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diagnostics of Helium-Argon Arc Discharge Plasma Based on Spectral Line Shape Measurements
Autorzy:
Wujec, T.
Musiełok, J.
Powiązania:
https://bibliotekanauki.pl/articles/1994650.pdf
Data publikacji:
1999-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.30.-r
32.70.-n
52.25.-b
Opis:
Electron densities and ion (gas) temperatures on the axis of an arc discharge plasma, produced at atmospheric pressure in a gas mixture of 95% helium and 5% argon, are determined at two arc currents. The evaluation of both main plasma parameters is based on line shape measurements, the ion temperature on the Doppler broadening of selected ArII lines, while the electron density on the Stark broadening of the hydrogen H$\text{}_{β}$ line which appear in the spectrum due to hydrogen traces in the applied gases. The significance of reliable plasma diagnostics for determination of atomic structure data is discussed.
Źródło:
Acta Physica Polonica A; 1999, 95, 2; 221-230
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation of Population Densities of Excited CI and CII Levels in Helium and Argon Plasmas Containing Small Admixtures of $\text{CO}_{2}$ - Importance to Analysis of Radiation Emitted from Plasmas of Axial Symmetry
Autorzy:
Bacławski, A.
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/1963254.pdf
Data publikacji:
1997-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.30.-r
52.25.-b
52.25.Rv
Opis:
Population densities of excited CI and CII levels are calculated in helium and argon plasmas containing small admixtures of $\text{CO}_{2}$. Calculations are performed for a total pressure of 1 atmosphere, in a temperature interval from 8000 K to 40000 K, assuming local thermal equilibrium (LTE) and partial local thermal equilibrium (pLTE) conditions. Normal temperatures are obtained for selected excited CI and CII levels. The results are applied to a helium plasma with traces of $\text{CO}_{2}$, of cylindrical symmetry with presumed radial temperature distribution. Effective intensities of CI and CII spectral lines, corresponding to side-on radiance measurements along the cylinder diameter are evaluated. On hand of these effective line intensities and applying the Boltzmann plot method effective temperatures are evaluated and compared with the presumed temperature distribution.
Źródło:
Acta Physica Polonica A; 1997, 91, 3; 519-529
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Line Strength Data for the Spectra οf C(I), N(II), N(I) and O(II)
Autorzy:
Bacławski, A.
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/1807775.pdf
Data publikacji:
2009-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
32.70.Cs
32.70.Fw
Opis:
Recently determined experimental and theoretical data on line strengths within 3s-3p and 3p-3d multiplets for C(I), N(II), N(I) and O(II) are analyzed. An overall satisfactory agreement between experimental data and results of recent sophisticated calculations is found with exception of only some weaker transitions. However, the measured and calculated relative line strengths disagree significantly with data resulting from the LS coupling scheme, particularly for 3p-3d transitions. In numerous cases these differences are - to a considerable degree - "regular" along the isoelectronic sequences C(I)-N(II) and N(I)-O(II). For some multiplets these discrepancies also correlate with departures from the Landé interval rule for terms involved in the corresponding transitions.
Źródło:
Acta Physica Polonica A; 2009, 116, 2; 176-184
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diagnostics of non - equilibrium plasma generated in dielectric barrier discharges
Autorzy:
Janus, H. W.
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/146403.pdf
Data publikacji:
2012
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
dielectric barrier discharges
hydrogen spectrum
line broadening
plasma diagnostics
Stark effect
Opis:
Results of electrical and spectroscopic diagnostics of dielectric barrier discharges by applying ceramic plates made of high permittivity material are presented. The spectroscopic diagnostic is based on analysis of spectral and spatial distribution of the hydrogen H alfa emission in the gas gap. From these measurements, e.g. the distributions of electric field strength and kinetic energy of excited hydrogen atoms in the discharge volume have been determined.
Źródło:
Nukleonika; 2012, 57, 2; 253-256
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conceptual design of Light Impurity Monitor for Wendelstein 7-X
Autorzy:
Książek, I.
Burhenn, R.
Musielok, J.
Powiązania:
https://bibliotekanauki.pl/articles/146640.pdf
Data publikacji:
2011
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
plasma spectroscopy
stellarator
soft X-ray
Opis:
As plasma impurity ions can significantly influence the properties of a fusion plasma by dilution and enhancement of the radiation losses, the process of monitoring of their concentrations is one of the most important tasks. A Light Impurity Monitor is needed for monitoring the contamination of the stellarator plasma by carbon, nitrogen, boron, and oxygen impurities, which are indicators for the overload of the plasma facing components, leakage of the vacuum vessel, or wall condition, respectively. Their concentration will be estimated on the basis of emission intensities of their hydrogen-like ions. In this paper a conceptual design of such a spectrometer is presented, including the description of the geometry, the acquisition system and safety systems.
Źródło:
Nukleonika; 2011, 56, 2; 155-160
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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