Stark broadening for turbulence studies in a confined plasma

Levine, Morton A.; Gallagher, Charles C.

doi:10.1016/0375-9601(70)90057-5

Cited by 11 publications

(5 citation statements)

References 3 publications

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“…degrees of freedom in plasmas-in distinction to the electron and ion microfields that correspond to individual degrees of freedom of charged particles. In relatively low density plasmas, various kinds of the EPT at the supra-thermal levels of its energy density, specifically at the levels that are several orders of magnitude higher than the thermal level, were discovered experimentally via the enhanced ("anomalous") SBHSL in numerous experiments/observations that were performed by different groups at various plasma sources [90,[116][117][118][119][120][121][122][123][124][125][126][127][128][129], some of these experiments being summarized in books [5,7].…”

Section: Preamblementioning

confidence: 99%

Review of Recent Advances in the Analytical Theory of Stark Broadening of Hydrogenic Spectral Lines in Plasmas: Applications to Laboratory Discharges and Astrophysical Objects

Oks

2018

Atoms

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There is presented an overview of the latest advances in the analytical theory of Stark broadening of hydrogenic spectral lines in various types of laboratory and astrophysical plasmas. They include: (1) advanced analytical treatment of the Stark broadening of hydrogenic spectral lines by plasma electrons; (2) center-of-mass effects for hydrogen atoms in a nonuniform electric field: applications to magnetic fusion, radiofrequency discharges, and flare stars; (3) penetrating-ions-caused shift of hydrogenic spectral lines in plasmas; (4) improvement of the method for measuring the electron density based on the asymmetry of hydrogenic spectral lines in dense plasmas; (5) Lorentz–Doppler broadening of hydrogen/deuterium spectral lines: analytical solution for any angle of observation and any magnetic field strength, and its applications to magnetic fusion and solar physics; (6) Revision of the Inglis-Teller diagnostic method; (7) Stark broadening of hydrogen/deuterium spectral lines by a relativistic electron beam: analytical results and applications to magnetic fusion; (8) Influence of magnetic-field-caused modifications of the trajectories of plasma electrons on shifts and relative intensities of Zeeman components of hydrogen/deuterium spectral lines: applications to magnetic fusion and white dwarfs; (9) Influence of magnetic-field-caused modifications of trajectories of plasma electrons on the width of hydrogen/deuterium spectral lines: applications to white dwarfs; (10) Stark broadening of hydrogen lines in plasmas of electron densities up to or more than Ne~1020 cm−3; and, (11) The shape of spectral lines of two-electron Rydberg atoms/ions: a peculiar Stark broadening.

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Section: Preamblementioning

confidence: 99%

Review of Recent Advances in the Analytical Theory of Stark Broadening of Hydrogenic Spectral Lines in Plasmas: Applications to Laboratory Discharges and Astrophysical Objects

Oks

2018

Atoms

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Section: Preamblementioning

confidence: 99%

Stark Broadening of Spectral Lines in Plasmas

Oks¹

2018

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Stark broadening of spectral lines remains an important tool for spectroscopic diagnostics of various types of laboratory and astrophysical plasmas. This is because laboratory and astrophysical plasmas contain various types of electric fields, such as the ion microfield, the electron microfield, fields of different kinds of electrostatic plasma turbulence, and laser/maser fields penetrating into plasmas. All these kinds of electric fields, differing by their statistical properties, strength, frequency, and possible polarization, cause a variety of types of Stark broadening of spectral lines in plasmas. Therefore, this research area is very important both fundamentally and practically, the latter being due to the numerous applications of plasmas. The practical applications range from the controlled thermonuclear fusion to plasma-based lasers and plasma sources of incoherent x-ray radiation as well as technological microwave discharges. Spectroscopic diagnostics based on Stark broadening are also indispensable tools for analyzing various astrophysical objects, such as solar plasmas (both for the quiet Sun and in solar flares), flare stars, white dwarfs, and so on. This book presents the latest research achievements in the area of Stark broadening of spectral lines in plasmas. It opens with three reviews describing the latest advances in analytical theory (with applications to various laboratory and astrophysical plasmas), in experimental studies of relativistic laser-plasma interactions, and in laboratory experiments facilitating the analysis of white dwarfs in astrophysics. These reviews are followed by seven original research papers devoted to a number of issues concerning Stark broadening of spectral lines in plasmas. They cover various experimental studies of laser-produced plasmas and theoretical studies presenting, in particular (but not exclusively), a new method for measuring ultra-strong magnetic fields, an improved method for measuring the electron density, as well as an advanced description of the radiative transfer.

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“…Different types of discharges were used over these experiments [10][11][12][13][14][15][16][17][18]. The LET was also diagnosed in solar flares by a detailed analysis of the shapes of the observed spectral lines of neutral hydrogen [19], as well as in experiment [20] for laboratory modeling of mechanisms of solar flares.…”

Section: Introductionmentioning

confidence: 99%

Using X-ray spectroscopy of relativistic laser plasma interaction to reveal parametric decay instabilities: a modeling tool for astrophysics

et al. 2017

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Article:Oks, E., Dalimier, E., Faenov, A. Ya et al. (16 more authors) (2017) Using X-ray spectroscopy of relativistic laser plasma interaction to reveal parametric decay instabilities : A modeling tool for astrophysics. Optics Express. pp. 1958-1972. ISSN 1094 https://doi.org/10.1364/OE.25.001958 eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Items deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.Using X-ray spectroscopy of relativistic laser plasma interaction to reveal parametric decay instabilities: a modeling tool for astrophysics faenov.anatoly@photon.osaka-u.ac.jp Abstract: By analyzing profiles of experimental x-ray spectral lines of Si XIV and Al XIII, we found that both Langmuir and ion acoustic waves developed in plasmas produced via irradiation of thin Si foils by relativistic laser pulses (intensities ~10 21 W/cm 2 ). We prove that these waves are due to the parametric decay instability (PDI). This is the first time that the PDI-induced ion acoustic turbulence was discovered by the x-ray spectroscopy in laserproduced plasmas. These conclusions are also supported by PIC simulations. Our results can be used for laboratory modeling of physical processes in astrophysical objects and a better understanding of intense laser-plasma interactions. A. Pikuz, V. M. Romanova, and T. A. Shelkovenko, "High-performance X-ray spectroscopic devices for plasma microsources investigations," Phys. Scr. 50(4), 333-338 (1994 1122-1127 (1981). 39. P. Maine, D. Strickland, P. Bado, M. Pessot, and G. Mourou, "Generation of ultrahigh peak power pulses by chirped pulse amplification," IEEE J. Quantum Electron. 24(2), 398-403 (1988). 40. A. I. Akhiezer and R. V. Polovin, "Theory of wave motion of an electron plasma," Sov. Phys. JETP 3, 696-705 (1956). 41. W. Lünow, "On the relativistic non-linear interaction of cold plasma with electro-magnetic waves," Plasma Phys.10(9), 879-897 (1968). 42. S. Guérin, P. Mora, J. C. Adam, A. Heron, and G. Laval, "Propagation of ultraintense laser pulses through overdense plasma layers," Phys. Plasmas 3(7), 2693-2701 (1996)

show abstract

Stark broadening for turbulence studies in a confined plasma

Cited by 11 publications

References 3 publications

Review of Recent Advances in the Analytical Theory of Stark Broadening of Hydrogenic Spectral Lines in Plasmas: Applications to Laboratory Discharges and Astrophysical Objects

Review of Recent Advances in the Analytical Theory of Stark Broadening of Hydrogenic Spectral Lines in Plasmas: Applications to Laboratory Discharges and Astrophysical Objects

Stark Broadening of Spectral Lines in Plasmas

Using X-ray spectroscopy of relativistic laser plasma interaction to reveal parametric decay instabilities: a modeling tool for astrophysics

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