Topic
Plasma diagnostics
About: Plasma diagnostics is a research topic. Over the lifetime, 13933 publications have been published within this topic receiving 225447 citations.
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Book•
01 Jan 1974TL;DR: SpectSpectral Line Broadening by Plasmas as discussed by the authors provides a theoretical overview of the spectral line broadening mechanism and its application in the field of plasma spectroscopy, with a focus on spectral lines.
Abstract: The usefulness of line-profile measurements as a diagnostic tool in plasma physics depends on our ability to analyze and interpret the data. In his earlier book, "Plasma Spectroscopy", * Hans Griem developed the theory of the various broadening mechanisms. His new book, "Spectral Line Broadening by Plasmas", closes the gap between theory and practical application for people who are not already expert in the theory of spectral lines.
2,509 citations
Book•
25 Sep 1987TL;DR: In this paper, the authors introduce a glossary of fast ions and fusion products, including fast ions, fast ion, and fast ion fusion products and their applications in the field of magnetic diagnostics.
Abstract: Preface to first edition Preface to second edition 1. Plasma diagnostics 2. Magnetic diagnostics 3. Plasma particle flux 4. Refractive-index measurements 5. Electromagnetic emission by free electrons 6. Electromagnetic radiation from bound electrons 7. Scattering of electromagnetic radiation 8. Neutral atom diagnostics 9. Fast ions and fusion products Appendices Glossary.
1,691 citations
TL;DR: In this article, a small concentration of suitably chosen noble gas to a reactive plasma is shown to permit the determination of the functional dependence of reactive particle density on plasma parameters, and examples illustrating the simplicity of this method are presented using F atomic emission from plasma-etching discharges and a comparison is made to available data in the literature.
Abstract: The addition of a small concentration of suitably chosen noble gas to a reactive plasma is shown to permit the determination of the functional dependence of reactive particle density on plasma parameters. Examples illustrating the simplicity of this method are presented using F atomic emission from plasma‐etching discharges and a comparison is made to available data in the literature.
796 citations
TL;DR: In this article, a statistical survey on the behavior of ion and electron moments in the central plasma sheet was conducted using four months of tail data obtained by the three-dimensional plasma instrument on board the AMPTE/IRM satellite.
Abstract: Using four months of tail data obtained by the three-dimensional plasma instrument on board the AMPTE/IRM satellite in 1986, we have done a statistical survey on the behavior of ion and electron moments in the central plasma sheet. Almost 80,000 spin averages of plasma density, ion bulk velocity, ion and electron temperature, and plasma β were analyzed with respect to differences between their values in the inner and outer central plasma sheet as well as their dependence on magnetic activity. The ion temperature increases with increasing magnetic activity while the ion density decreases during disturbed intervals, except in the neutral sheet neighborhood at smaller radial distances. The ion and electron temperatures in the central plasma sheet are highly correlated, with Ti/Te being constant over a wide range of temperatures and about twice as large as in the distant tail. The average ion flow speeds in the central plasma sheet are below 100 km/s and nearly identical to those found in the plasma sheet boundary layer, although the distribution functions usually are quite different. High-speed flows do occur, but in bursts of most often less than 1 min duration with intermittent intervals of nearly stagnant plasma. The distribution of flow directions strongly favors sunward flow for velocities above 300 km/s, indicating that a near-earth neutral line is rarely, if ever, located inside of XGSM = −19 RE.
659 citations