Download or read book Laser Fusion Experiments at LLL written by and published by . This book was released on 1980 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 LLL. Two other chapters, one authored by K.A. Brueckner and the other by C. Max, present the theoretical implosion physics and laser plasma interaction physics. The notes consist of six sections. The first is an introductory section which 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 LLL Laser Fusion Program. The third section is a presentation of laser facilities and capabilities at LLL. 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.

Download or read book Laser Fusion Experiments at LLL written by and published by . This book was released on 1980 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laser Fusion Experiments Facilities and Diagnostics at Lawrence Livermore Laboratory written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The progress of the LLL Laser Fusion Program to achieve high gain thermonuclear micro-explosions is discussed. Many experiments have been successfully performed and diagnosed using the large complex, 10-beam, 30 TW Shiva laser system. A 400 kJ design of the 20-beam Nova laser has been completed. The construction of the first phase of this facility has begun. New diagnostic instruments are described which provide one with new and improved resolution, information on laser absorption and scattering, thermal energy flow, suprathermal electrons and their effects, and final fuel conditions. Measurements were made on the absorption and Brillouin scattering for target irradiations at both 1.064 .mu.m and 532 nm. These measurements confirm the expected increased absorption and reduced scattering at the shorter wavelength. Implosion experiments have been performed which have produced final fuel densities over the range of 10x to 100x liquid DT density.

Download or read book Introduction to Laser Fusion written by Chiyoe Yamanaka and published by Taylor & Francis US. This book was released on 1991 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive introduction to the rapidly developing field of laser fusion. It covers the range of inertial confinement techniques extending from fusion reactions to the laser interaction with plasmas and implosion dynamics. The properties of various fusion drivers are reviewed, as are the current experimental status and future prospects of the technique.

Download or read book Laser Interaction and Related Plasma Phenomena written by Helmut J. Schwarz and published by Springer. This book was released on 1974-10-01 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: As was the case in the two preceding workshops of 1969 and 1971, the Third Workshop on "Laser Interaction and Related Plasma Phenomena" held in 1973 was of international character. The main purpose was to review the advanced status of this particular and turbulent field of physics as it had developed vigorously in all major laboratories of the world since 1971. Due to recently accelerated advancements, it was hardly possible to present a com plete tutorial review; the subject is still in its premature stages and changing rapidly. A topical conference would have been too specific for a group of physicists with broad backgrounds working in the field or for those just about to enter it. It was the aim of the workshop and it is the aim of these proceedings to help this large group of scientists find their way within the highly complex and sometimes confusing results of a new field. We optimized the task of the workshop with extensive reviews on several topics and at the same time included more detailed infor mation for specialists. The differences in their conclusions were not a matter of contention but rather served to complement the advanced results. As in the preceding workshops, we directed our attention toward critical realism in respect to the complexity of the field. What is meant here is exemplified in the contribution by R. Sigel ~.667).

Download or read book Status of Laser Fusion Review of Research at KMSF LLL Los Alamos and Univ of Rochester Laboratories written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During 1974-1975, first generation laser implosion experiments have been performed at the KMSF, Livermore, Los Alamos, and University of Rochester Laboratories. Several significant results were achieved in these experiments. The fuel underwent large entropy changes during implosion and did not reach high densities. Consequently, the sensitivity to fluid and plasma instabilities was greatly reduced. A summary of these implosion experiments is presented.

Download or read book Laser Fusion Experiments at the Lawrence Livermore Laboratory written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A short review is given of some of the important dates in the experimental fusion program at Livermore. A few of the parameters of the laser systems which are being used for these experiments are mentioned. Some information about specialized diagnostics which have been developed at the Livermore Laboratory for these experiments is described. The focusing arrangements for each of the systems are discussed. Experiments both on planar targets and on targets for laser fusion are described. (auth).

Download or read book Laser Fusion Experiments at 2 TW ARGUS Implosions of D T Microspheres written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lawrence Livermore Laboratory solid state laser system, ARGUS, has successfully performed laser implosion experiments at power levels exceeding 2 TW. D-T filled glass microspheres have been imploded to yield thermonuclear reaction products in excess of 108 per event. Neutron and .cap alpha. time of flight measurements indicate that D-T ion temperatures of (3 to 4.5 keV) and a density confinement time product (n tau) of approximately (1 to 3) x 1012 were obtained in these experiments. Typically two 30J, 30 psec pulses of 1.06 .mu.m light were focused on targets using 20 cm aperture f/l lenses, producing intensities at the target in excess of 1016 W/cm2. An extensive array of diagnostics routinely monitored the laser performance and the laser target interaction process. Measurements of absorption and asymmetry in both the scattered light distribution and the ion blow off is evidence for non-classical resonant processes absorption mechanisms and density scale heights of the order of 2.mu.m or less. The symmetry of the thermonuclear burn region is investigated by monitoring the .cap alpha. particle flux in several directions, and an experiment to image the thermonuclear burn region is in process. These experiments significantly extend our data base and our understanding of laser induced thermonuclear implosions and the basic laser plasma interaction physics from the 0.4 to 0.7 TW level of previous experiments.

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.

Download or read book Fusion Energy Update written by and published by . This book was released on 1979 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances In Laser Interaction With Matter And Inertial Fusion written by G Velarde and published by World Scientific. This book was released on 1997-12-04 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects together theoretical and experimental contributions on laser-plasma interaction and dynamics, together with the physics of laser fusion, coronal, hydrodynamics (instabilities), radiation hydrodynamics and atomic physics. Theory and experiments are reviewed. In addition to diagnostics, indirect drive modeling and experiments are reported, as well as approaches of direct drive foam-buffered targets for uniform compression. New ideas on triggering ignition and use of advanced fuels for neutronless fusion are also reported. The short-pulse ultra-intense laser interaction is extensively represented both theoretically and experimentally. The two major laser-fusion ignition projected facilities (2 MJ class). National Ignition Facility (NIF) / USA and Laser Megajoule (LMJ) / France, are also disscused.

Download or read book Diagnostics of Experiments on Laser Fusion Targets at LLNL written by H. G. Ahlstrom and published by . This book was released on 1982 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics of Laser Fusion Volume III High power Pulsed Lasers written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High-power pulsed lasers can deliver sufficient energy on inertial-confinement fusion (ICF) time scales (0.1 to 10 ns) to heat and compress deuterium-tritium fuel to fusion-reaction conditions. Several laser systems have been examined, including Nd:glass, CO2, KrF, and I2, for their ICF applicability. A great deal of developmental effort has been applied to the Nd:glass laser and the CO2 gas laser systems; these systems now deliver> 104 J and 20 x 1012 W to ICF targets. We are constructing the Nova Nd:glass laser at LLNL to provide> 100 kJ and> 100 x 1012 W of 1-.mu.m radiation for fusion experimentation in the mid-1980s. For ICF target gain> 100 times the laser input, we expect that the laser driver must deliver approx. 3 to 5 MJ of energy on a time scale of 10 to 20 ns. In this paper we review the technological status of fusion-laser systems and outline approaches to constructing high-power pulsed laser drivers.

Download or read book Laser Fusion Experiments at 2 TW Argus System Implosion of D T Filled Glass Microspheres written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lawrence Livermore Laboratory Solid State Laser System, Arqus, has successfully performed laser implosion experiments at power levels exceeding 2 TW. D-T filled glass microspheres have been imploded to yield thermonuclear reaction products in excess of 5 x 108 per event. Neutron and .cap alpha. time-of-flight measurements indicate that D-T ion temperatures of approximately 5-6 keV and a density confinement time product (n tau) of approximately 1 x 1012 were obtained in these experiments. Typically two 40J, 40 psec pulses of 1.06 .mu.m light were focused on targets using 20 cm aperture f/1 lenses, producing intensities at the target in excess of 1016 W/cm2. An extensive array of diagnostics routinely monitored the laser performance and the laser target interaction process. Measurements of absorption and asymmetry in both the scattered light distribution and the ion blow off is evidence for non-classical absorption mechanisms and density scale heights of the order of 2 .mu.m or less. The symmetry of the thermonuclear burn region is investigated by monitoring the .cap alpha.-particle flux in several directions, and an experiment to image the thermonuclear burn region is in process. These experiments significantly extend our data base and our understanding of laser induced thermonuclear implosions and the basic laser plasma interaction physics from the 0.4 to 0.7 TW level of previous experiments.

Download or read book Systems Approaches to Nuclear Fusion Reactors written by Frederick B. Marcus and published by Springer Nature. This book was released on 2023-01-01 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an overall review, applying systems engineering and architecture approaches, of the design, optimization, operation and results of leading fusion experiments. These approaches provide a unified means of evaluating reactor design. Methodologies are developed for more coherent construction or evaluation of fusion devices, associated experiments and operating procedures. The main focus is on tokamaks, with almost all machines and their important results being integrated into a systems design space. Case studies focus on DIII-D, TCV, JET, WEST, the fusion reactor prototype ITER and the EU DEMO concept. Stellarator, Mirror and Laser inertial confinement experiments are similarly analysed, including reactor implications of breakeven at NIF. The book examines the engineering and physics design and optimization process for each machine, analysing their performance and major results achieved, thus establishing a basis for the improvement of future machines. The reader will gain a broad historical and up-to-date perspective of the status of nuclear fusion research from both an engineering and physics point of view. Explanations are given of the computational tools needed to design and operate successful experiments and reactor-relevant machines. This book is aimed at both graduate students and practitioners of nuclear fusion science and engineering, as well as those specializing in other fields demanding large and integrated experimental equipment. Systems engineers will obtain valuable insights into fusion applications. References are given to associated complex mathematical derivations, which are beyond the scope of this book. The general reader interested in nuclear fusion will find here an accessible summary of the current state of nuclear fusion.

Download or read book Laser Fusion a Solution to the Natural Gas Shortage written by United States. Congress. House. Committee on Government Operations and published by . This book was released on 1975 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress in Lasers and Laser Fusion written by Behram Kursunoglu and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains a portion of the presentations given at the session on Laser-Fusion and Laser Develop ment of Orbis Scientiae II, held at the Center for Theoretical Studies, University of Miami, from January 20 through January 24, 1975. This second in the new series of meetings held at the CTS strove to implement the goals professed in the organization of Orbis Scientiae in 1974, namely to encourage scientists in several disci plines to exchange views, not only with colleagues who share similar research interests, but also to acquaint scientists in other fields with the leading ideas and current results in each area represented. Thus, an effort has been made to include papers in each session that discuss fundamental issues in a way which is com prehensible to scientists who are specialists in other areas. Also in keeping with the philosophy of Orbis Scientiae, the major topics each year are to be varied, with the invariant being the inclusion of developments in fundamental physics. The discussions of the current state of the art in lasers and fusion represented in this volume are not only of interest because they deal with newly unfolding branches of physics, but also because of their potential technological and societal significance. The paper by v. N. Lugovoi and A. M. Prokhorov was not presented at Orbis Scientiae II, but is included because of its relevance to the topics in this volume.