Results 251 to 260 of about 500,968 (278)

Plasma Spectroscopy in ISTTOK

AIP Conference Proceedings, 2008
Plasma spectroscopy is a well established technique for impurities study in fusion plasmas. A brief description of the several spectroscopic systems which have been in operation at ISTTOK is given. In ISTTOK a passive spectroscopy diagnostic system is being used to perform spectral and spatial characterization in the 300–850 nm wavelength range.
J. Figueiredo, R. B. Gomes, T. Pereira, H. Fernandes, A. Sharakovski, Carlos Varandas, Carlos Sliva   +6 more
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Spectroscopy of magnetized plasmas

Journal of Quantitative Spectroscopy and Radiative Transfer, 2001
Abstract The frequency fluctuation model that provides a model for the description of Stark broadening has been modified to include the effect of a uniform magnetic field. This model is a convenient framework for treating, in a non perturbative approach, simultaneously acting Zeeman and Stark effects, while retaining the effect of ion dynamics.
L. Godbert-Mouret, M. Koubiti, R. Stamm, K. Touati, B. Felts, H. Capes, Y. Corre, R. Guirlet, C. De Michelis   +8 more
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Polarization in plasma spectroscopy

AIP Conference Proceedings, 1995
Starting with the early experiment of observing polarization of radiation from canal rays in an electric field, we review spatially anisotropic excitation processes which create aligned atoms or ions, leading to polarization of the emitted radiation by these atoms or ions. Collisional relaxation of the alignment is also reviewed.
Takashi Fujimoto, Tetsuya Kawachi
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Elementary plasma spectroscopy

1988
The preceding chapters have shown that the widths, shapes and intensities of spectral lines depend on the temperature, pressure and electron density of the environment of the atom or molecule, as well as on its intrinsic properties. If the broadening and other physical processes are properly understood and the necessary atomic parameters are known, the
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Principles of Plasma Spectroscopy

Nuclear Fusion, 1998
This book gives a comprehensive treatment of plasma spectroscopy, the quantitative study of line and continuous radiation from high temperature plasmas. This highly interdisciplinary field combines elements of atomic, plasma and statistical physics, and has wide application to simulations and diagnostics of laboratory and astrophysical plasmas ...
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Plasma emission sources in analytical spectroscopy—II

Talanta, 1975
A critical survey of plasma emission sources used in analytical spectroscopy, excluding conventional arc and spark sources, has been made. In Part I the concept of temperature applied to high-temperature excitation sources is considered, as are arc plasma jets.
S, Greenfield, H M, McGeachin, P B, Smith   +2 more
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Plasma spectroscopy for magnetically confined fusion plasma

AIP Conference Proceedings, 2007
An emission line of neutral helium λ667.8 nm (21P‐31D) is observed with a set of line of sights which covers an entire poloidal cross section of LHD, a heliotron‐type fusion experimental device. From the observed Zeeman splittings and the well‐known magnetic field structure in the plasma, the emission locations on the line of sight are precisely ...
M. Goto, S. Morita
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Basics of plasma spectroscopy

Plasma Sources Science and Technology, 2006
These lecture notes are intended to give an introductory course on plasma spectroscopy. Focusing on emission spectroscopy, the underlying principles of atomic and molecular spectroscopy in low temperature plasmas are explained. This includes choice of the proper equipment and the calibration procedure.
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Reflection Spectroscopy by Plasma-Resonance Enhancement

Applied Optics, 1973
By placing a thin layer of a metal with plasma frequency omega(p) upon a substrate of a second metal with a plasma frequency much greater than omega(p) a configuration is created that greatly enhances plasma-resonance effects upon reflectance. Sample results of calculations for films of potassium and silver deposited upon an aluminum substrate are ...
R P, Godwin, M M, Mueller
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Atomic spectroscopy with surface wave plasmas

Analytical and Bioanalytical Chemistry, 1996
The use of microwave induced plasmas, particularly of surface wave plasmas, as detectors in atomic emission spectrometry for elemental analysis is reviewed. Surface wave plasmas have been produced at low HF power and used as gas chromatographic detectors.
J, Hubert, S, Bordeleau, K C, Tran, S, Michaud, B, Milette, R, Sing, J, Jalbert, D, Boudreau, M, Moisan, J, Margot   +9 more
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