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ISBN 13 :
Total Pages : 207 pages
Book Rating : 4.:/5 (931 download)
Download or read book Experimental and Computational K-shell Spectroscopy of Laser Produced Plasmas written by and published by . This book was released on 2006 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (727 download)
Download or read book K-shell and L-shell Plasma Spectroscopy Experiments written by and published by . This book was released on 1990 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed atomic level populations in high temperature and dense plasmas have become increasingly important in laser generated plasmas. Certain spectral line intensity ratios are density-dependent while others are temperature-dependent. Both can be used to extract information concerning population kinetics and ion level populations. In order to be useful these dependencies must be characterized by independent means. In laser produced plasmas this can be done via holographic interferometry for electron density determinations and via the slope of the H-like free-bound continuum of K-shell lines for electron temperature determinations. The characterization of density- and temperature-dependent L-shell lines can be accomplished in ionization balance experiments in which laser irradiance is varied on targets which contain both K-shell and L-shell emitters. The K-shell free-bound continua provide the local temperature determination while holographic interferometry yields density profile information, from which the temperature and density dependent L-shell lines can be characterized. This paper discusses these concepts.
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ISBN 13 :
Total Pages : 548 pages
Book Rating : 4.X/5 (4 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce Kai Fong Young
Publisher :
ISBN 13 :
Total Pages : 724 pages
Book Rating : 4.:/5 (33 download)
Download or read book Space and Time Resolved Spectroscopy of Laser-produced Plasmas written by Bruce Kai Fong Young and published by . This book was released on 1988 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph Fred O'Shay
Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.:/5 (487 download)
Download or read book Time-resolved Visible and Extreme Ultraviolet Spectroscopy of Laser-produced Tin Plasma written by Joseph Fred O'Shay and published by . This book was released on 2007 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the final section of this study, we investigate the radiative properties of tin ablation plasma as the laser irradiance is varied by more than an order of magnitude. The effect of increased focused laser energy is manifested in a weak scaling of radiation temperature, and a significant broadening of the emission lifetime at the highest laser intensities. It is found that the resulting radiation conversion efficiency is not a strong function of laser intensity within the parameter regime of this work. It is shown that agreement between experimental and simulated plasma conditions becomes progressively worse in the high-irradiance regime as the ionization and radiative transfer models play increasingly dominant roles in the plasma energetics.
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ISBN 13 :
Total Pages : 922 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.3/5 (91 download)
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2008 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eugene Oks
Publisher : MDPI
ISBN 13 : 3038974552
Total Pages : 171 pages
Book Rating : 4.0/5 (389 download)
Download or read book Stark Broadening of Spectral Lines in Plasmas written by Eugene Oks and published by MDPI. This book was released on 2019-01-14 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Stark Broadening of Spectral Lines in Plasmas" that was published in Atoms
Author : Eugene Oks
Publisher : American Institute of Physics
ISBN 13 : 9780735403703
Total Pages : 384 pages
Book Rating : 4.4/5 (37 download)
Download or read book Spectral Line Shapes written by Eugene Oks and published by American Institute of Physics. This book was released on 2006-12-07 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of spectral line shapes, on the fundamental side, reveal the underlying atomic and molecular interactions. On the practical side, they are employed as powerful diagnostic tools for energy pursuit via controlled fusion, for technological gas discharges, for the atmosphere of the Earth, the Sun, and other stars.
Download or read book Space and Time Resolved Spectroscopy of Laser-produced Plasmas written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The determination of level populations and detailed population mechanisms in dense plasmas has become an increasingly important problem in atomic physics. In this work, the density variation of line intensities and level populations in aluminum K-shell and molybdenum and silver L-shell emission spectra have been measured from high-powered, laser-produced plasmas. For each case, the density dependence of the observed line emission is due to the effect of high frequency electron-ion collisions on metastable levels. The density dependent line intensities vary greatly in laser-produced plasmas and can be used to extract detailed information concerning the population kinetics and level populations of the ions. The laser-plasmas had to be fully characterized in order to clearly compare the observed density dependence with atomic theory predictions. This has been achieved through the combined use of new diagnostic instruments and microdot targets which provided simultaneously space, time, and spectrally resolved data. The plasma temperatures were determined from the slope of the hydrogen-like recombination continuum. The time resolved electron density profiles were measured using multiple frame holographic interferometry. Thus, the density dependence of K-shell spectral lines could be clearly examined, independent of assumptions concerning the dynamics of the plasma. In aluminum, the electron density dependence of various helium-like line intensity ratios were measured. Standard collisional radiative equilibrium models fail to account for the observed density dependence measured for the ''He/sub .cap alpha.//IC'' ratio. Instead, a quasi-steady state atomic model based on a purely recombining plasma is shown to accurately predict the measured density dependence. This same recombining plasma calculation successfully models the density dependence of the high-n ''He/sub .gamma.//He/sub .beta./'' and ''He/sub delta//He/sub .beta./'' helium-like resonance line intensity ratios.
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ISBN 13 :
Total Pages : 610 pages
Book Rating : 4.E/5 ( download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Simultaneously Time- and Space-resolved Spectroscopic Characterization of Laser-produced Plasmas written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The CHROMA laser facility at KMS Fusion has been used to irradiate a variety of microdot targets. These include aluminum dots and mixed bromine dots doped with K-shell (magnesium) emitters. Simultaneously time- and space-resolved K-shell and L-shell spectra have been measured and compared to dynamic model predictions. The electron density profiles are measured using holographic interferometry. Temperatures, densities, and ionization distributions are determined using K-shell and L-shell spectral techniques. Time and spatial gradients are resolved simultaneously using three diagnostics: a framing crystal x-ray spectrometer, an x-ray streaked crystal spectrometer with a spatial imaging slit, and a 4-frame holographic interferometer. Significant differences have been found between the interferometric and the model-dependent spectral measurements of plasma density. Predictions by new non-stationary L-shell models currently being developed are also presented. 14 refs., 10 figs.
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ISBN 13 :
Total Pages : 698 pages
Book Rating : 4.0/5 ( download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975-11 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dimitri Batani
Publisher : American Institute of Physics
ISBN 13 : 9780735403192
Total Pages : 616 pages
Book Rating : 4.4/5 (31 download)
Download or read book Superstrong Fields in Plasma written by Dimitri Batani and published by American Institute of Physics. This book was released on 2006-04-06 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book follows from the 3rd International Conference on Superstrong Fields in Plasmas, which addressed new developments in laser technology, and the theoretical exploration of completely new laser-matter interaction regimes. Topics include: atomic and molecular dynamics in strong fields, high harmonic generation, coherent X-ray radiation, nonlinear plasma dynamics and relativistic optics, laser-based electron and ion acceleration, inertial confinement fusion and fast ignition, laboratory astrophysics, and more.
Author : W Goldstein
Publisher : World Scientific
ISBN 13 : 9814556173
Total Pages : 395 pages
Book Rating : 4.8/5 (145 download)
Download or read book Radiative Properties Of Hot Dense Matter - Proceedings Of The International Workshop written by W Goldstein and published by World Scientific. This book was released on 1991-11-27 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains contributions dealing with the radiative properties of dense plasmas, including radiative transport, opacity, atomic processes, spectroscopy, line-shapes and hydrodynamic behavior. Laser-produced plasmas are a primary focus . The latest experimental and theoretical developments are presented and discussed. New results are reported for plasma opacity modeling, plasma-dependent atomic processes, absorption spectroscopy of laser-produced plasmas, statistical treatments of spectral line clusters, and ultra-short pulse laser-plasma spectroscopy.
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Publisher : Elsevier
ISBN 13 : 9780080561394
Total Pages : 294 pages
Book Rating : 4.5/5 (613 download)
Download or read book Advances in Atomic, Molecular, and Optical Physics written by and published by Elsevier. This book was released on 1991-02-19 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Atomic, Molecular, and Optical Physics
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ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.3/5 (91 download)
Download or read book Fusion Energy Update written by and published by . This book was released on 1980 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
