Download or read book Nuclear Induced Plasmas of Gas Mixtures and Nuclear Pumped Lasers written by Mendykhan U. Khasenov and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We briefly describe the basic processes of formation and relaxation of nuclear-induced plasmas of gas mixtures, especially the processes of inverse population creation in nuclear-pumped lasers (NPL). A review of the work to create and research nuclear-pumped lasers is in progress: on transitions of atoms and atomic ions and on molecular transitions. An increased focus is on the gas media, which we also study on WWR-K nuclear reactor and DC-60 ion accelerator. The studies on emission of heteronuclear ionic molecules of inert gases are also reviewed.
Download or read book Laser Plasmas and Nuclear Energy written by Heinrich Hora and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of this book was written before October 1973. Thus the statements concerning the energy crisis are now dated, but remain valid nevertheless. However, the term "energy crisis" is no longer the unusual new concept it was when the material was written; it is, rather, a commonplace expression for a condition with which we are all only too familiar. The purpose of this book is to point out that the science and technology of laser-induced nuclear fusion are an extraordinary subject, which in some way not yet completely clear can solve the problem of gaining a pollution-free and really inexhaustible supply of inexpensive energy from the heavy hydrogen (deuterium) atoms found in all terrestrial waters. The concept is very obvious and very simple: To heat solid deuterium or mixtures of deuterium and tritium (superheavy hydrogen) by laser pulses so rapidly that despite the resulting expansion and cooling there still take place so many nuclear fusion reactions tnat the energy produced is greater than the laser energy that had to be applied. Compression of the plasma by the laser radiation itself is a more sophisticated refinement of the process, but one which at the present stage of laser cechnology is needed for the rapid realization of a laser-fusion reactor for power generation. This concept of compression can also be applied to the development of completely safe reactors with controlled microexplosions of laser-compressed fissionable materials such as uranium and even boron, which fission completely safely into nonradioactive helium atoms.
Download or read book First International Symposium on Nuclear Induced Plasmas and Nuclear Pumped Lasers written by and published by . This book was released on 1979 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research on Fission Induced Plasmas and Nuclear Pumped Lasers at the Los Alamos Scientific Laboratory written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The gaseous fueled reactor system has the potential of several distinct advantages as an advanced power source. Because of these advantages it appears possible that this may be an ideal reactor for power production and for space propulsion. Characteristics such as high operating efficiency and low uranium inventory are particularly attractive. Advances in certain technology areas must be accomplished before it will be possible to produce an engineering design for a gaseous fueled power station. Corrosion problems of fluorine and uranium hexafluoride with materials must be solved, however, recent advances indicate these problems are not insurmountable. The vortex flow of buffer gas confinement obviates the most severe environment in the flow system. The feasibility of such confinement has been demonstrated successfully for small-scale devices and the present experimental activity is aimed at demonstration of the principle in the reactor environment at moderate power levels. Concurrently, efforts are being made to address the problems of adapting the gas core reactor concept to be used as a power supply for nuclear pumped lasers. Experimental and theoretical work is producing better understanding of fundamental phenomena, however, further progress must be made before engineering problems may be addressed. Continued work in this field is particularly interesting to NASA because of the potentially important benefits in space applications.
Download or read book Direct Nuclear pumped Lasers written by N. W. Jalufka and published by . This book was released on 1983 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics of Nuclear Induced Plasmas and Problems of Nuclear Pumped Lasers written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Nuclear Pumped Laser Results written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent direct nuclear pumped laser research at the University of Illinois has concentrated on experiments with three gas mixtures (Ne-N/sub 2/, He-Ne-O/sub 2/, and He-Hg). One mixture has been made to lase and gain has been achieved with the other two. All three of these mixtures are discussed with particular attention paid to He-Hg. Of interest for DNP work is the 6150-A ion transition in Hg/sup +/. The upper state of this transition is formed directly by charge transfer and by Penning ionization.
Download or read book High Energy and Short Pulse Lasers written by Richard Viskup and published by BoD – Books on Demand. This book was released on 2016-09-07 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives the readers an introduction to experimental and theoretical knowledge acquired by large-scale laser laboratories that are dealing with extra-high peak power and ultrashort laser pulses for research of terawatt (TW), petawatt (PW), or near-future exawatt (EW) laser interactions, for soft X-ray sources, for acceleration of particles, or for generation of hot dense thermal plasma for the laser fusion. The other part of this book is dealing with the small-scale laser laboratories that are using for its research on commercial sources of laser radiation, nanosecond (ns), picosecond (ps), or femtosecond (fs) laser pulses, either for basic research or for more advanced applications. This book is divided into six main sections dealing with short and ultrashort laser pulses, laser-produced soft X-ray sources, large-scale high-power laser systems, free-electron lasers, fiber-based sources of short optical pulse, and applications of short pulse lasers. In each chapter readers can find fascinating topics related to the high energy and/or short pulse laser technique. Individual chapters should serve the broad spectrum of readers of different expertise, layman, undergraduate and postgraduate students, scientists, and engineers, who may in this book find easily explained fundamentals as well as advanced principles of particular subjects related to these phenomena.
Download or read book Direct Nuclear Pumped Laser Approaching Feedback Laser Fusion Needs written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new direct nuclear pumped laser in which the lasing output is delayed for relatively long times (milliseconds) with respect to nuclear excitation is described. The laser operates at 1.45 .mu. in gas mixtures of He-CO and He-CO2. The nuclear pumping process is described. (MOW).
Download or read book Heat transfer Regimes in Nuclear reactor pumped Gas Lasers written by and published by . This book was released on 1990 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flow induced in nuclear-reactor-pumped gas lasers by the competing effects of spatially nonuniform fission-fragment heating (pumping) and heat transfer to the walls is examined. The equations of motion are acoustically filtered (low Mach number approximation), and the resulting equations are seen to have three timescales: the duration of the heating, the time required by the heating to produce a pressure rise comparable to the initial pressure, and the time for the thermal boundary layer to grow into the center of the laser cell. Three distinct regimes emerge from consideration of the relative magnitudes of these timescales. In the negligible-conduction regime, thermal-conduction effects are small, and the motion is determined by the spatial nonuniformity of the heating. In the dominant-conduction regime, thermal-conduction effects govern the motion. In the mixed regime, the effects of thermal conduction and heating nonuniformity are comparable, but since they are oppositely directed, a complex gas motion results. Analytical solutions to the equations of motion are presented for the negligible-conduction and dominant-conduction regimes, and examples are given for all three regimes. Plots of the second spatial derivative of the density field (a quantity often used in optical analyses) are given for the negligible-conduction and the dominant-conduction regimes as functions of the appropriate similarity parameters. 26 refs., 14 figs.
Download or read book Recombination Pumped Atomic Nitrogen and Carbon Afterglow Lasers written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well established that lasing of atomic nitrogen and carbon can be obtained during the afterglow of an electrical discharge in gas mixtures of either neon or helium containing low partial pressures of N/sub 2/ or CO. In addition, the neon-nitrogen laser has recently been pumped directly by nuclear radiation. Microwave quenching experiments have shown conclusively that the afterglow lasers are being pumped directly by the recombination of electron-ion pairs. This result differs from the mechanisms previously proposed for these systems. Measurements comparing the relative sensitivity to the electron temperature of the neon to atomic nitrogen and carbon afterglow light infer that the recombination process pumping these lasers is collisional-radiative, allowing the recombining ions to be identified as N/sup +/ and C/sup +/. Since this process is highly compatible with nuclear-radiation generated plasmas, it is not unreasonable to infer that this process is also the pumping mechanism in the nuclear-excited, neon-nitrogen laser.
Download or read book Fundamental Study of Nuclear Pumped Laser Plasmas written by L. W. Downes and published by . This book was released on 1980 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although there have been many activities during the preceding report periods, this interim report will restrict itself to the theoretical prediction of a new laser amplifier process and experimental evidence for the existence of the process. This special report is being generated because this new laser processor may have significant impact on nuclear pumped lasers, as well as high power (and high energy) laser systems in general.
Download or read book Nuclear Pumped Lasers written by Mark Prelas and published by Springer. This book was released on 2015-11-20 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on Nuclear-Pumped Laser (NPL) technology and provides the reader with a fundamental understanding of NPLs, a review of research in the field and exploration of large scale NPL system design and applications. Early chapters look at the fundamental properties of lasers, nuclear-pumping and nuclear reactions that may be used as drivers for nuclear-pumped lasers. The book goes on to explore the efficient transport of energy from the ionizing radiation to the laser medium and then the operational characteristics of existing nuclear-pumped lasers. Models based on Mathematica, explanations and a tutorial all assist the reader’s understanding of this technology. Later chapters consider the integration of the various systems involved in NPLs and the ways in which they can be used, including beyond the military agenda. As readers will discover, there are significant humanitarian applications for high energy/power lasers, such as deflecting asteroids, space propulsion, power transmission and mining. This book will appeal to graduate students and scholars across diverse disciplines, including nuclear engineering, laser physics, quantum electronics, gaseous electronics, optics, photonics, space systems engineering, materials, thermodynamics, chemistry and physics.
Download or read book Lasers with Nuclear Pumping written by S.P. Melnikov and published by Springer. This book was released on 2014-11-27 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the history of lasers with nuclear pumping (Nuclear Pumped Lasers, NPLs). This book showcases the most important results and stages of NPL development in The Russian Federal Nuclear Center (VNIIEF) as well as other Russian and international laboratories, including laboratories in the United States. The basic science and technology behind NPLs along with potential applications are covered throughout the book. As the first comprehensive discussion of NPLs, students, researchers, and application engineers interested in high energy lasers will find this book to be an extremely valuable source of information about these unique lasers.
Download or read book Analysis of Direct Nuclear Pumped Noble Gas Lasers written by Jerry Edward Deese and published by . This book was released on 1978 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1983 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear pumped Lasers written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
