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The Use Of Electrostatic Probes To Characterize The Discharge Plasma Structure And Identify Discharge Cathode Erosion Mechanisms In Ring Cusp Ion Thrusters
Download The Use Of Electrostatic Probes To Characterize The Discharge Plasma Structure And Identify Discharge Cathode Erosion Mechanisms In Ring Cusp Ion Thrusters full books in PDF, epub, and Kindle. Read online The Use Of Electrostatic Probes To Characterize The Discharge Plasma Structure And Identify Discharge Cathode Erosion Mechanisms In Ring Cusp Ion Thrusters ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis The Use of Electrostatic Probes to Characterize the Discharge Plasma Structure and Identify Discharge Cathode Erosion Mechanisms in Ring-cusp Ion Thrusters by : Daniel A. Herman
Download or read book The Use of Electrostatic Probes to Characterize the Discharge Plasma Structure and Identify Discharge Cathode Erosion Mechanisms in Ring-cusp Ion Thrusters written by Daniel A. Herman and published by . This book was released on 2005 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applied Science, Materials Science and Information Technologies in Industry by : D.L. Liu
Download or read book Applied Science, Materials Science and Information Technologies in Industry written by D.L. Liu and published by Trans Tech Publications Ltd. This book was released on 2014-02-06 with total page 4700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of selected, peer reviewed papers from the 2014 International Conference on Advances in Materials Science and Information Technologies in Industry (AMSITI 2014), January 11-12, 2014, Xian, China. Volume is indexed by Thomson Reuters CPCI-S (WoS). The 1030 papers are grouped as follows: Chapter 1: Materials Science and Processing Technologies; Chapter 2: Information Technologies and Information Processing Algorithms; Chapter 3: Applied Sciences and Engineering Researches
Book Synopsis A Multiple-cathode, High-power, Rectangular Ion Thruster Discharge Chamber for Increasing Thruster Lifetime by : Joshua Lucas Rovey
Download or read book A Multiple-cathode, High-power, Rectangular Ion Thruster Discharge Chamber for Increasing Thruster Lifetime written by Joshua Lucas Rovey and published by . This book was released on 2006 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Propulsion and Power by :
Download or read book Journal of Propulsion and Power written by and published by . This book was released on 2008 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Electric Propulsion by : Dan M. Goebel
Download or read book Fundamentals of Electric Propulsion written by Dan M. Goebel and published by John Wiley & Sons. This book was released on 2008-12-22 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout most of the twentieth century, electric propulsion was considered the technology of the future. Now, the future has arrived. This important new book explains the fundamentals of electric propulsion for spacecraft and describes in detail the physics and characteristics of the two major electric thrusters in use today, ion and Hall thrusters. The authors provide an introduction to plasma physics in order to allow readers to understand the models and derivations used in determining electric thruster performance. They then go on to present detailed explanations of: Thruster principles Ion thruster plasma generators and accelerator grids Hollow cathodes Hall thrusters Ion and Hall thruster plumes Flight ion and Hall thrusters Based largely on research and development performed at the Jet Propulsion Laboratory (JPL) and complemented with scores of tables, figures, homework problems, and references, Fundamentals of Electric Propulsion: Ion and Hall Thrusters is an indispensable textbook for advanced undergraduate and graduate students who are preparing to enter the aerospace industry. It also serves as an equally valuable resource for professional engineers already at work in the field.
Book Synopsis Enhanced Discharge Performance in a Ring Cusp Plasma Source by :
Download or read book Enhanced Discharge Performance in a Ring Cusp Plasma Source written by and published by . This book was released on 2000 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Overcoming the Scaling Limitations of Ring-Cusp DC Ion Thruster Discharges by : Ben Dankongkakul
Download or read book Overcoming the Scaling Limitations of Ring-Cusp DC Ion Thruster Discharges written by Ben Dankongkakul and published by . This book was released on 2017 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion thruster discharges exhibit impressive performance at conventional scales (~30 cm in diameter); however, scaling to smaller sizes (~3 cm) presents considerable challenges. This research effort addresses the miniaturization of direct current (DC) discharges via a series of careful investigations (i.e., near-field cusp-confinement, discharge experiments, computational efforts, and theoretical analyses). These investigations provided insight into the plasma behavior and loss mechanisms within small-scale DC discharges. This insight was then used to develop and demonstrate a highly efficient miniature-scale DC ion source called the Axial Ring-Cusp Hybrid (ARCH) discharge. Implemented as a 3 cm ion thruster, it can potentially achieve a discharge loss of 160 eV/ion and mass utilization efficiencies of 0.89 -- performance values that have previously only been attainable by conventional-scale discharges (>10 cm). The improve performance will greatly expand the mission capabilities of many future spacecraft missions by providing the high efficiency of ion thrusters at small powers and scales. This thesis describes 3 efforts that were undertaken to better understand cusp-confinement physics and miniature DC discharge behavior. Since small-scale DC discharges are limited by their ability to effectively utilize the high-energy primary electrons, the first effort began with experiments utilizing an electron flood gun to investigate the loss behavior of magnetically-confined primary electrons. It was found that increasing the complexity of the upstream field affected the spatial complexity of the loss area. These efforts showed that, in contrast to existing theory, the primary electron loss can be strongly influenced by the upstream magnetic fields. This behavior is particularly important and noticeable for miniature-scale discharges where small perturbations of the primary electron's gyro-center are preserved from one cusp to the next. The second effort was then used to investigate the overall confinement behavior of a cusp discharge, to baseline the probing techniques for magnetized plasma discharges, and to validate computational models. It was found that the plasma electron temperature and primary electron density must be analyzed via the electron energy distribution function (EEDF) data. The interpreted primary electron density showed good quantitative agreement with computational simulations. The final effort was to investigate and improve the discharge efficiency of miniature-scale DC ion thruster discharges. The plasma parameter maps for several magnetic field and discharge conditions were analyzed in conjunction with estimated performance measurements. For the 3 cm Miniature Xenon Ion (MiXI) thruster, the detail discharge maps revealed the mechanisms responsible for the MiXI's flat beam profile and high discharge loss. Analyses of the ionization rates confirm previous computational findings that the plasma within the original MiXI design is created almost entirely by direct primary electron ionization of the xenon gas. Multiple ring cusp configurations (i.e., 3-ring, 4-ring, and 5-ring) were also examined. These efforts revealed that a major redesign is necessary to avoid some of the inherent limitations of ring-cusp discharges at the miniature scale. Ultimately, a new discharge design called the ARCH discharge was developed. Performance data and discharge maps show that this approach provides high primary electron confinement, high plasma electron density, high plasma uniformity along the extraction plane, and discharge performance that may rival well-designed conventionally-sized ion thrusters.
Book Synopsis Plasma Diagnostics by : Orlando Auciello
Download or read book Plasma Diagnostics written by Orlando Auciello and published by Academic Press. This book was released on 2013-10-22 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma Diagnostics, Volume 1: Discharge Parameters and Chemistry covers seven chapters on the important diagnostic techniques for plasmas and details their use in particular applications. The book discusses optical diagnostic techniques for low pressure plasmas and plasma processing; plasma diagnostics for electrical discharge light sources; as well as Langmuir probes. The text also describes the mass spectroscopy of plasmas, microwave diagnostics, paramagnetic resonance diagnostics, and diagnostics in thermal plasma processing. Electrical engineers, nuclear engineers, microwave engineers, chemists, and technical personnel in universities, industry, and national laboratories will find the book invaluable.
Book Synopsis Electrostatic Probe with Shielded Probe Insulator Tube for Low Disturbing Plasma Measurements in Hall Thrusters by : D. Staack
Download or read book Electrostatic Probe with Shielded Probe Insulator Tube for Low Disturbing Plasma Measurements in Hall Thrusters written by D. Staack and published by . This book was released on 2003 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microwave Discharges by : Carlos M. Ferreira
Download or read book Microwave Discharges written by Carlos M. Ferreira and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a NATO ARW held in Vimeiro, Portugal, May 11-15, 1992
Book Synopsis Inertial Electrostatic Confinement (IEC) Fusion by : George H. Miley
Download or read book Inertial Electrostatic Confinement (IEC) Fusion written by George H. Miley and published by Springer Science & Business Media. This book was released on 2013-12-12 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with an introductory understanding of Inertial Electrostatic Confinement (IEC), a type of fusion meant to retain plasma using an electrostatic field. IEC provides a unique approach for plasma confinement, as it offers a number of spin-off applications, such as a small neutron source for Neutron Activity Analysis (NAA), that all work towards creating fusion power. The IEC has been identified in recent times as an ideal fusion power unit because of its ability to burn aneutronic fuels like p-B11 as a result of its non-Maxwellian plasma dominated by beam-like ions. This type of fusion also takes place in a simple mechanical structure small in size, which also contributes to its viability as a source of power. This book posits that the ability to study the physics of IEC in very small volume plasmas makes it possible to rapidly investigate a design to create a power-producing device on a much larger scale. Along with this hypothesis the book also includes a conceptual experiment proposed for demonstrating breakeven conditions for using p-B11 in a hydrogen plasma simulation. This book also: Offers an in-depth look, from introductory basics to experimental simulation, of Inertial Electrostatic Confinement, an emerging method for generating fusion power Discusses how the Inertial Electrostatic Confinement method can be applied to other applications besides fusion through theoretical experiments in the text Details the study of the physics of Inertial Electrostatic Confinement in small-volume plasmas and suggests that their rapid reproduction could lead to the creation of a large-scale power-producing device Perfect for researchers and students working with nuclear fusion, Inertial Electrostatic Confinement (IEC) Fusion: Fundamentals and Applications also offers the current experimental status of IEC research, details supporting theories in the field and introduces other potential applications that stem from IEC.
Book Synopsis Introduction to Plasma Physics and Controlled Fusion by : Francis F. Chen
Download or read book Introduction to Plasma Physics and Controlled Fusion written by Francis F. Chen and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: TO THE SECOND EDITION In the nine years since this book was first written, rapid progress has been made scientifically in nuclear fusion, space physics, and nonlinear plasma theory. At the same time, the energy shortage on the one hand and the exploration of Jupiter and Saturn on the other have increased the national awareness of the important applications of plasma physics to energy production and to the understanding of our space environment. In magnetic confinement fusion, this period has seen the attainment 13 of a Lawson number nTE of 2 x 10 cm -3 sec in the Alcator tokamaks at MIT; neutral-beam heating of the PL T tokamak at Princeton to KTi = 6. 5 keV; increase of average ß to 3%-5% in tokamaks at Oak Ridge and General Atomic; and the stabilization of mirror-confined plasmas at Livermore, together with injection of ion current to near field-reversal conditions in the 2XIIß device. Invention of the tandem mirror has given magnetic confinement a new and exciting dimension. New ideas have emerged, such as the compact torus, surface-field devices, and the EßT mirror-torus hybrid, and some old ideas, such as the stellarator and the reversed-field pinch, have been revived. Radiofrequency heat ing has become a new star with its promise of dc current drive. Perhaps most importantly, great progress has been made in the understanding of the MHD behavior of toroidal plasmas: tearing modes, magnetic Vll Vlll islands, and disruptions.
Book Synopsis History of Shock Waves, Explosions and Impact by : Peter O. K. Krehl
Download or read book History of Shock Waves, Explosions and Impact written by Peter O. K. Krehl and published by Springer Science & Business Media. This book was released on 2008-09-24 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique and encyclopedic reference work describes the evolution of the physics of modern shock wave and detonation from the earlier and classical percussion. The history of this complex process is first reviewed in a general survey. Subsequently, the subject is treated in more detail and the book is richly illustrated in the form of a picture gallery. This book is ideal for everyone professionally interested in shock wave phenomena.
Book Synopsis Magnetic Fusion Technology by : Thomas J. Dolan
Download or read book Magnetic Fusion Technology written by Thomas J. Dolan and published by Springer Science & Business Media. This book was released on 2014-02-10 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic Fusion Technology describes the technologies that are required for successful development of nuclear fusion power plants using strong magnetic fields. These technologies include: • magnet systems, • plasma heating systems, • control systems, • energy conversion systems, • advanced materials development, • vacuum systems, • cryogenic systems, • plasma diagnostics, • safety systems, and • power plant design studies. Magnetic Fusion Technology will be useful to students and to specialists working in energy research.
Book Synopsis Atom-Probe Tomography by : Michael K. Miller
Download or read book Atom-Probe Tomography written by Michael K. Miller and published by Springer. This book was released on 2014-07-31 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanocharacterization by Atom Probe Tomography is a practical guide for researchers interested atomic level characterization of materials with atom probe tomography. Readers will find descriptions of the atom probe instrument and atom probe tomography technique, field ionization, field evaporation and field ion microscopy. The fundamental underlying physics principles are examined, in addition to data reconstruction and visualization, statistical data analysis methods and specimen preparation by electropolishing and FIB-based techniques. A full description of the local electrode atom probe – a new state-of-the-art instrument – is also provided, along with detailed descriptions and limitations of laser pulsing as a method to field evaporate atoms. Valuable coverage of the new ionization theory is also included, which underpins the overall technique.
Book Synopsis Low Pressure Plasmas and Microstructuring Technology by : Gerhard Franz
Download or read book Low Pressure Plasmas and Microstructuring Technology written by Gerhard Franz and published by Springer Science & Business Media. This book was released on 2009-04-09 with total page 743 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last forty years, plasma supported processes have attracted ever - creasing interest, and now, all modern semiconductor devices undergo at least one plasma-involved processing step, starting from surface cleaning via coating to etching. In total, the range of the treated substrates covers some orders of magnitude: Trenches and linewidths of commercially available devices have - ready passed the boundary of 100 nm, decorative surface treatment will happen 2 in the mm range, and the upper limit is reached with surface protecting layers of windows which are coated with ?/4 layers against IR radiation. The rapid development of the semiconductor industry is inconceivable wi- outthegiantprogressintheplasmatechnology.Moore’slawisnotcarvedinto 1 stone, and not only the ITRS map is subject to change every ?ve years but also new branches develop and others mingle together. Moreover, the quality of conventional materials can be improved by plasma treatment:Cottonbecomesmorecrease-resistant,leathermoredurable,andthe shrinking of wool ?bers during the washing process can be signi?cantly reduced. To cut a long story short: More than 150 years after the discovery of the sputtering e?ect by Grove, plasma-based processes are about to spread out into new ?elds of research and application [1]—no wonder that the market for etching machines kept growing by an annual rate of 17 % up to the burst of the internet bubble, and it took only some years of recovery to continue the voyage [2].
