Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Recent Laser Plasma Interaction Studies At Llnl
Download Recent Laser Plasma Interaction Studies At Llnl full books in PDF, epub, and Kindle. Read online Recent Laser Plasma Interaction Studies At Llnl ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Recent Laser-plasma Interaction Studies at LLNL. by :
Download or read book Recent Laser-plasma Interaction Studies at LLNL. written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent analysis and modeling of Nova experiments which address our understanding of stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) will be presented. Forward and backward SBS levels have been investigated with SSD of varying bandwidth and with polarization smoothing using an f/8 focusing geometry to emulate NIF conditions. The interpretation of the experiments is aided using F3D, a fluid code which includes modeling of SBS and SRS; a parallel version of F3D is being developed which will allow the modeling of a plasma approaching the size of an entire NIF laser beam. Cryogenic targets have recently been employed to investigate the dependence of SRS saturation levels on ion wave damping via the Langmuir decay instability.
Book Synopsis Introduction to Laser-Plasma Interactions by : Pierre Michel
Download or read book Introduction to Laser-Plasma Interactions written by Pierre Michel and published by Springer Nature. This book was released on 2023-04-18 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides a comprehensive introduction to the physics of laser-plasma interactions (LPI), based on a graduate course taught by the author. The emphasis is on high-energy-density physics (HEDP) and inertial confinement fusion (ICF), with a comprehensive description of the propagation, absorption, nonlinear effects and parametric instabilities of high energy lasers in plasmas. The recent demonstration of a burning plasma on the verge of nuclear fusion ignition at the National Ignition Facility in Livermore, California, has marked the beginning of a new era of ICF and fusion research. These new developments make LPI more relevant than ever, and the resulting influx of new scientists necessitates new pedagogical material on the subject. In contrast to the classical textbooks on LPI, this book provides a complete description of all wave-coupling instabilities in unmagnetized plasmas in the kinetic as well as fluid pictures, and includes a comprehensive description of the optical smoothing techniques used on high-power lasers and their impact on laser-plasma instabilities. It summarizes all the key developments from the 1970s to the present day in view of the current state of LPI and ICF research; it provides a derivation of the key LPI metrics and formulas from first principles, and connects the theory to experimental observables. With exercises and plenty of illustrations, this book is ideal as a textbook for a course on laser-plasma interactions or as a supplementary text for graduate introductory plasma physics course. Students and researchers will also find it to be an invaluable reference and self-study resource.
Book Synopsis Recent Laser-plasma Interaction Experiments at the Lawrence Livermore National Laboratory by :
Download or read book Recent Laser-plasma Interaction Experiments at the Lawrence Livermore National Laboratory written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Livermore experiments are aimed at investigating laser-plasma interaction issues which are relevant to ablatively driven fusion processes. We report the data obtained from using longer pulses and shorter laser wavelengths.
Book Synopsis Review of Upconverted Nd-glass Laser Plasma Experiments at the Lawrence Livermore National Laboratory by :
Download or read book Review of Upconverted Nd-glass Laser Plasma Experiments at the Lawrence Livermore National Laboratory written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematic scaling experiments aimed at deducing the dependence of laser-plasma interaction phenomena on target plasma material and target irradiation history have been underway in laboratories all over the world in recent years. During 1980 and 1981 the Livermore program undertook to measure the laser light absorption of high and low Z plasmas and the partition of the absorbed energy amongst the thermal and suprathermal electron populations as a function of both laser intensity and wavelength. Simulations suggested that short wavelength laser light would couple more efficiently than longer wavelengths to target plasmas. Shorter wavelength heating of higher electron plasma densities would, it was felt, lead to laser-plasma interactions freer of anomalous absorption processes. The following sections review LLNL experiments designed to test these hypotheses.
Book Synopsis Laser Interaction and Related Plasma Phenomena by : Helmut J. Schwarz
Download or read book Laser Interaction and Related Plasma Phenomena written by Helmut J. Schwarz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 913 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 7th International Workshop in the series LASER INTERACTION AND RELATED PLASMA PHENOMENA continued the high standards established by the earlier meetings in this series. It was organized under the directorship of Heinrich Hora and George H. Miley at the Naval Postgraduate School in Monterey, California, with Fred Schwirzke as the local organizer. These workshops have presented many "firsts" in laser plasma interactions and especially in laser fusion. Some presentations provided continuity with the past, most represented advancements; however, in some workshops, progress did not appear to be occurring as rapidly as in others. Therefore, it was a special pleasure that in the present workshop when, on October 30, 1985, Chiyoe Yamanaka disclosed a breakthrough in the generation of fusion neutrons with laser fusion targets. The 7th Workshop also continued to represent other new fields of laser-plasma interaction. The progress reported was most pronounced in the fields of X-ray lasers, laser acceleration of particles by electrostatic double layers in plasmas, and a particle beam technique to solve the geometric problem of muon-catalyzed fusion. The development of laser-plasma interactions at medium to high laser intensities may be seen in its whole complexity from a brief review of prior conferences. At the first Workshop in 1969, a comprehensive review of the field was presented by the speakers with the opening address by N.
Book Synopsis Laser-plasma Interactions Relevant to Inertial Confinement Fusion by :
Download or read book Laser-plasma Interactions Relevant to Inertial Confinement Fusion written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Research into laser-driven inertial confinement fusion is now entering a critical juncture with the construction of the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL). Many of the remaining unanswered questions concerning NIF involve interactions between lasers and plasmas. With the eventual goal of fusion power in mind, laser-plasma interactions relevant to laser fusion schemes is an important topic in need of further research. This work experimentally addresses some potential shortcuts and pitfalls on the road to laser-driven fusion power. Current plans on NIF have 192 laser beams directed into a small cylindrical cavity which will contain the fusion fuel; to accomplish this the beams must cross in the entrance holes, and this intersection will be in the presence of outward-flowing plasma. To investigate the physics involved, interactions of crossing laser beams in flowing plasmas are investigated with experiments on the Nova laser facility at LLNL. It was found that in a flowing plasma, energy is transferred between two crossing laser beams, and this may have deleterious consequences for energy balance and ignition in NIF. Possible solutions to this problem are presented. A recently-proposed alternative to standard laser-driven fusion, the ''fast ignitor'' concept, is also experimentally addressed in this dissertation. Many of the laser-plasma interactions necessary for the success of the fast ignitor have not previously been explored at the relevant laser intensities. Specifically, the transfer of high-intensity laser energy to electrons at solid-target interfaces is addressed. 20-30% conversion efficiencies into forward-propagated electrons were measured, along with an average electron energy that varied with the type of target material. The directionality of the electrons was also measured, revealing an apparent beaming of the highest energy electrons. This work was extended to various intensities and pulse lengths and a relationship between conversion efficiency and laser intensity was deduced. This work serves to advance knowledge of laser-plasma interactions relevant to a variety of laser-driven fusion schemes, and indicates directions for future research. These results should facilitate the success of NIF and other laser-fusion facilities.
Book Synopsis Laser-Plasma Interactions and Applications by : Paul McKenna
Download or read book Laser-Plasma Interactions and Applications written by Paul McKenna and published by Springer Science & Business Media. This book was released on 2013-03-29 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-Plasma Interactions and Applications covers the fundamental and applied aspects of high power laser-plasma physics. With an internationally renowned team of authors, the book broadens the knowledge of young researchers working in high power laser-plasma science by providing them with a thorough pedagogical grounding in the interaction of laser radiation with matter, laser-plasma accelerators, and inertial confinement fusion. The text is organised such that the theoretical foundations of the subject are discussed first, in Part I. In Part II, topics in the area of high energy density physics are covered. Parts III and IV deal with the applications to inertial confinement fusion and as a driver of particle and radiation sources, respectively. Finally, Part V describes the principle diagnostic, targetry, and computational approaches used in the field. This book is designed to give students a thorough foundation in the fundamental physics of laser-plasma interactions. It will also provide readers with knowledge of the latest research trends and elucidate future exciting challenges in laser-plasma science.
Book Synopsis Edward Teller Lectures by : Heinrich Hora
Download or read book Edward Teller Lectures written by Heinrich Hora and published by World Scientific Publishing Company. This book was released on 2016-08-10 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: How to achieve unlimited, safe, clean and low-cost energy by laser- or beam-driven inertial nuclear fusion has preoccupied all winners of the Edward Teller Medal since its inception in 1991. This book presents their findings, meeting discussions, and personal insights from Edward Teller himself. Expect discussion of important advances anticipated in the future such as multi-billion dollar fusion research projects (NIF), and new schemes such as the petawatt-picosecond laser-plasma interactions evoking new physics and coupling mechanisms. For the first time, laser technology of the new century is providing the very short and extremely intense energetic pulses needed for fusion energy from next generation power stations, which produce energy at cost several times lower than any other source. The long-sought dream to directly ignite frozen heavy hydrogen for controlled use is close to being realized. Years of research on plasmas and lasers carried out worldwide in highly sophisticated experiments is summarized. The coverage begins with the work of John Nuckolls and Nobel Laureate Nikolai Basov and leads to the new scheme of plasma block acceleration via the nonlinear ponderomotive force. Edward Teller Lectures is one of the first guides to these new developments.
Book Synopsis Laser Interaction and Related Plasma Phenomena by : George H. Miley
Download or read book Laser Interaction and Related Plasma Phenomena written by George H. Miley and published by American Inst. of Physics. This book was released on 1998-04-15 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Progress of Laser Fusion at Lawrence Livermore Laboratory by :
Download or read book Progress of Laser Fusion at Lawrence Livermore Laboratory written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Shiva and Nova programs are briefly reviewed. Some target diagnostics are described. Some laser-plasma interaction experiments are discussed. (MOW).
Book Synopsis Laser-plasma-interaction Experiments Using Multikilojoule Lasers by :
Download or read book Laser-plasma-interaction Experiments Using Multikilojoule Lasers written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper summarizes the results of several laser-plasma-interaction experiments using multikilojoule lasers, and considers their implications for laser fusion. The experiments used 1.06, 0.53, 0.35, and 0.26 .mu.m light to produce relatively large, warm, planar plasmas and to study the effect of laser wavelength and density-gradient scale length on the Stimulated Raman Scattering and on the scattering of light at frequencies near the incident laser frequency by Stimulated Brillouin Scattering or other processes. The results of these experiments suggest that some laser wavelength between 0.2 and 0.6 .mu.m will be required for high-gain laser fusion.
Book Synopsis Laser-Plasma Interaction Physics at LULI. by :
Download or read book Laser-Plasma Interaction Physics at LULI. written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-plasma interaction physics is studied in the context of laser fusion using the six-beam laser facility at LULI. Interaction between RPP laser beams and well-characterized preformed plasmas has been performed to study various aspects of stimulated Brillouin and Raman scattering (SBS and SRS), self-focusing and filamentation. Thomson scattering of a short wavelength probe laser beam was used to provide a complete characterization of the plasma (electron temperature, density, flow velocity) and measurements of the density fluctuations associated with ion acoustic waves and electron plasma waves, with temporal, spatial, frequency and wavenumber resolution. Among the different studies, they will present results on the effect of polarization smoothing, target material, multi-species plasmas, and Langmuir decay on parametric instabilities.
Book Synopsis Applications of Laser-Plasma Interactions by : Shalom Eliezer
Download or read book Applications of Laser-Plasma Interactions written by Shalom Eliezer and published by CRC Press. This book was released on 2008-12-22 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in the development of lasers with more energy, power, and brightness have opened up new possibilities for exciting applications. Applications of Laser-Plasma Interactions reviews the current status of high power laser applications. The book first explores the science and technology behind the ignition and burn of imploded fusion fue
Book Synopsis Dependence of Laser-plasma Interaction Physics on Laser Wavelength and Plasma Scalelength by :
Download or read book Dependence of Laser-plasma Interaction Physics on Laser Wavelength and Plasma Scalelength written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We discuss the dependence of many features of laser-plasma interaction physics on both the laser wavelength and plasma dimensions. Experimental results that are presented include absorption, stimulated Brillouin scattering, suprathermal electron production, and optical signatures of the two plasmon decay and stimulated Raman instabilities. While the experiments show beneficial effects of decreasing laser wavelength on the coupling physics, the mix and efficiency of the various interaction processes is shown to be strongly dependent on the size of the underdense plasma. 42 refs., 20 figs., 5 tabs.
Book Synopsis Physics of Laser Fusion. Volume II. Diagnostics of Experiments on Laser Fusion Targets at LLNL. by :
Download or read book Physics of Laser Fusion. Volume II. Diagnostics of Experiments on Laser Fusion Targets at LLNL. written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: These notes present the experimental basis and status for laser fusion as developed at LLNL. There are two other volumes in this series: Vol. I, by C.E. Max, presents the theoretical laser-plasma interaction physics; Vol. III, by J.F. Holzrichter et al., presents the theory and design of high-power pulsed lasers. A fourth volume will present the theoretical implosion physics. The notes consist of six sections. The first, an introductory section, provides some of the history of inertial fusion and a simple explanation of the concepts involved. The second section presents an extensive discussion of diagnostic instrumentation used in the LLNL Laser Fusion Program. The third section is a presentation of laser facilities and capabilities at LLNL. The purpose here is to define capability, not to derive how it was obtained. The fourth and fifth sections present the experimental data on laser-plasma interaction and implosion physics. The last chapter is a short projection of the future.
Book Synopsis Frontiers in High Energy Density Physics by : National Research Council
Download or read book Frontiers in High Energy Density Physics written by National Research Council and published by National Academies Press. This book was released on 2003-05-11 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent scientific and technical advances have made it possible to create matter in the laboratory under conditions relevant to astrophysical systems such as supernovae and black holes. These advances will also benefit inertial confinement fusion research and the nation's nuclear weapon's program. The report describes the major research facilities on which such high energy density conditions can be achieved and lists a number of key scientific questions about high energy density physics that can be addressed by this research. Several recommendations are presented that would facilitate the development of a comprehensive strategy for realizing these research opportunities.
Book Synopsis Comparison of Theory and Simulations with Recent Laser Plasma Experiments by :
Download or read book Comparison of Theory and Simulations with Recent Laser Plasma Experiments written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past few months, detailed experimental data have become available on laser light absorption versus angle, plasma density profiles near the critical surface, and stimulated scattering processes. In the light of these experiments, it seems timely to reassess our theoretical understanding of these phenomena. A quantitative comparison of the data with current results of plasma simulations and theory is presented and the areas where further theoretical effort is called for are pointed out. Three recent experiments done at Livermore are compared with the latest theoretical and simulation results on laser-plasma interactions. The analysis covers the following areas: (1) theory of resonance absorption on a rippled critical surface, compared with an experiment on the angle and polarization dependence of absorption; (2) theory of density profile steepening, compared with holographic interferometry measurements; and (3) theory of stimulated Brillouin scattering in long density gradients, compared with reflectivity measurements for long pulse, large focal spot experiments.
