Design and Performance of 40 Cm Ion Optics

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721288908
Total Pages : 40 pages
Book Rating : 4.2/5 (889 download)

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Book Synopsis Design and Performance of 40 Cm Ion Optics by : National Aeronautics and Space Administration (NASA)

Download or read book Design and Performance of 40 Cm Ion Optics written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-19 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 40 cm ion thruster is being developed at the NASA Glenn Research Center to obtain input power and propellant throughput capabilities of 10 kW and 550 kg. respectively. The technical approach here is a continuation of the "derating" technique used for the NSTAR ion thruster. The 40 cm ion thruster presently utilizes the NSTAR ion optics aperture geometry to take advantage of the large database of lifetime and performance data already available. Dome-shaped grids were chosen for the design of the 40 cm ion optics because this design is naturally suited for large-area ion optics. Ion extraction capabilities and electron backstreaming limits for the 40 cm ion optics were estimated by utilizing NSTAR 30 cm ion optics data. A preliminary service life assessment showed that the propellant throughput goal of 550 kg of xenon may be possible with molybdenum 40 cm ion optics. One 40 cm ion optics' set has been successfully fabricated to date. Additional ion optics' sets are presently being fabricated. Preliminary performance tests were conducted on a laboratory model 40 cm ion thruster. Soulas, George C. Glenn Research Center; Marshall Space Flight Center NASA/TM-2001-211275, E-13074, IEPC-01-090, NAS 1.15:211275

Design and Performance of 40 Cm Ion Optics ... Nasa

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ISBN 13 :
Total Pages : pages
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Book Synopsis Design and Performance of 40 Cm Ion Optics ... Nasa by : United States. National Aeronautics and Space Administration

Download or read book Design and Performance of 40 Cm Ion Optics ... Nasa written by United States. National Aeronautics and Space Administration and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design and Performance of 40 Cm Ion Optics

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ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (317 download)

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Download or read book Design and Performance of 40 Cm Ion Optics written by and published by . This book was released on 2001 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Performance Evaluation of 40 Cm Ion Optics for the NEXT Ion Engine

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ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Performance Evaluation of 40 Cm Ion Optics for the NEXT Ion Engine by :

Download or read book Performance Evaluation of 40 Cm Ion Optics for the NEXT Ion Engine written by and published by . This book was released on 2002 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

PERFORMANCE EVALUATION OF 40 CM ION OPTICS FOR THE NEXT ION ENGINE... NASA/TM--2002-211801... NATIONAL AERONAUTICS AND SPACE ADMINISTRATION.

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ISBN 13 :
Total Pages : pages
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Book Synopsis PERFORMANCE EVALUATION OF 40 CM ION OPTICS FOR THE NEXT ION ENGINE... NASA/TM--2002-211801... NATIONAL AERONAUTICS AND SPACE ADMINISTRATION. by : United States. National Aeronautics and Space Administration

Download or read book PERFORMANCE EVALUATION OF 40 CM ION OPTICS FOR THE NEXT ION ENGINE... NASA/TM--2002-211801... NATIONAL AERONAUTICS AND SPACE ADMINISTRATION. written by United States. National Aeronautics and Space Administration and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Performance Evaluation of 40 CM Ion Optics for the Next Ion Engine

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721527038
Total Pages : 34 pages
Book Rating : 4.5/5 (27 download)

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Book Synopsis Performance Evaluation of 40 CM Ion Optics for the Next Ion Engine by : National Aeronautics and Space Administration (NASA)

Download or read book Performance Evaluation of 40 CM Ion Optics for the Next Ion Engine written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-19 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of performance tests with two 40 cm ion optics sets are presented and compared to those of 30 cm ion optics with similar aperture geometries. The 40 cm ion optics utilized both NSTAR and TAG (Thick-Accelerator-Grid) aperture geometries. All 40 cm ion optics tests were conducted on a NEXT (NASA's Evolutionary Xenon Thruster) laboratory model ion engine. Ion optics performance tests were conducted over a beam current range of 1.20 to 3.52 A and an engine input power range of 1.1 to 6.9 kW. Measured ion optics' performance parameters included near-field radial beam current density profiles, impingement-limited total voltages, electron backstreaming limits, screen grid ion transparencies, beam divergence angles, and start-up transients. Impingement-limited total voltages for 40 cm ion optics with the NSTAR aperture geometry were 60 to 90 V lower than those with the TAG aperture geometry. This difference was speculated to be due to an incomplete burn-in of the TAG ion optics. Electron backstreaming limits for the 40 cm ion optics with the TAG aperture geometry were 8 to 19 V higher than those with the NSTAR aperture geometry due to the thicker accelerator grid of the TAG geometry. Because the NEXT ion engine provided beam flatness parameters that were 40 to 63 percent higher than those of the NSTAR ion engine, the 40 cm ion optics outperformed the 30 cm ion optics. Soulas, George C. and Haag, Thomas W. and Patterson, Michael J. Glenn Research Center NASA/TM-2002-211801, AIAA Paper 2002-3834, E-13496

Monthly Catalog of United States Government Publications

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ISBN 13 :
Total Pages : 882 pages
Book Rating : 4.:/5 (89 download)

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Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2003 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:

38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-3800 - 02-3849

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ISBN 13 :
Total Pages : 394 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-3800 - 02-3849 by :

Download or read book 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit: 02-3800 - 02-3849 written by and published by . This book was released on 2002 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Tech Briefs

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ISBN 13 :
Total Pages : 1286 pages
Book Rating : 4.F/5 ( download)

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Download or read book NASA Tech Briefs written by and published by . This book was released on 2006 with total page 1286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fundamentals of Electric Propulsion

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Publisher : John Wiley & Sons
ISBN 13 : 0470436263
Total Pages : 528 pages
Book Rating : 4.4/5 (74 download)

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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.

Ion Engine and Hall Thruster Development at the NASA Glenn Research Center

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ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)

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Download or read book Ion Engine and Hall Thruster Development at the NASA Glenn Research Center written by and published by . This book was released on 2002 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings of the ASME Fluids Engineering Division

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ISBN 13 :
Total Pages : 798 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Proceedings of the ASME Fluids Engineering Division written by and published by . This book was released on 2002 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advance Elements of Laser Circuits and Systems

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Publisher : Springer Nature
ISBN 13 : 3030641031
Total Pages : 1235 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Advance Elements of Laser Circuits and Systems by : Ofer Aluf

Download or read book Advance Elements of Laser Circuits and Systems written by Ofer Aluf and published by Springer Nature. This book was released on 2021-03-09 with total page 1235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on Advance Elements of Laser circuits and systems Nonlinearity applications in engineering addresses two separate engineering and scientific areas, and presents advanced analysis methods for Laser circuits and systems that cover a broad range of engineering and scientific applications. The book analyzed Laser circuits and systems as linear and nonlinear dynamical systems and there limit cycles, bifurcation, and limit cycle stability by using nonlinear dynamic theory. Further, it discussed a broad range of bifurcations related to Laser systems and circuits, starting from laser system differential equations and their bifurcations, delay differential equations (DDEs) are a function of time delays, delay dependent parameters, followed by phase plane analysis, limit cycles and their bifurcations, chaos, iterated maps, period doubling. It combines graphical information with analytical analysis to effectively study the local stability of Laser systems models involving delay dependent parameters. Specifically, the stability of a given steady state is determined by the graphs of some functions of which can be expressed explicitly. The Laser circuits and systems are Laser diode circuits, MRI system Laser diode circuitry, Electron-photon exchanges into VCSEL, Ti: Sapphire laser systems, Ion channel and long-wavelength lasers, Solid state lasers, Solid state laser controlled by semiconductor devices, microchip solid-state laser, Q-switched diode-pumped solid-state laser, Nd:YAG, Mid-Infrared and Q-switched microchip lasers, Gas laser systems, copper vapor laser (CVL) circuitry, Dual-wavelength laser systems, Dual-wavelength operation of a Ti:sapphire laser, Diode-pumped Q-switched Nd:YVO4 yellow laser, Asymmetric dual quantum well lasers, Tm3+-doped silica fibre lasers, Terahertz dual-wavelength quantum cascade laser. The Book address also the additional areas, Laser X guiding system, Plasma diagnostics, Laser Beam shaping, Jitter and crosstalk, Plasma mirror systems, and High power Laser/Target diagnostic system optical elements. The book is unique in its emphasis on practical and innovative engineering and scientific applications. All conceptual Laser circuits are innovative and can be broadly implemented in many engineering applications. The dynamics of Laser circuits and systems provides several ways to use them in a variety of applications covering wide areas. This book is aimed at electrical and electronics engineers, students and researchers in physics as well. It is also aimed for research institutes in lasers and plasma physics and gives good comprehensive in laser and plasma systems. In each chapter, the concept is developed from basic assumptions up to the final engineering and scientific outcomes. The scientific background is explained at basic and advance levels and closely integrated with mathematical theory. Many examples are presented in this book and it is also ideal for intermediate level courses at graduate level studies. It is also ideal for engineer who has not had formal instruction in nonlinear dynamics, but who now desires to fill the gap between innovative Laser circuits/systems and advance mathematical analysis methods

RF Photonic Technology in Optical Fiber Links

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Publisher : Cambridge University Press
ISBN 13 : 1139439685
Total Pages : 423 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis RF Photonic Technology in Optical Fiber Links by : William S. C. Chang

Download or read book RF Photonic Technology in Optical Fiber Links written by William S. C. Chang and published by Cambridge University Press. This book was released on 2007-05-14 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many applications, radio frequency (RF) signals need to be transmitted and processed without being digitalized. Optical fiber provides a transmission medium in which RF modulated optical carriers can be transmitted and distributed with very low loss, making it more efficient and less costly than conventional electronic systems. This volume presents a review of RF photonic components, transmission systems, and signal processing examples in optical fibers from leading academic, government, and industry scientists working in this field. It also introduces the reader to various related technologies such as direct modulation of laser sources, external modulation techniques, and detectors. The text is aimed at engineers and scientists engaged in the research and development of optical fibers and analog RF applications. With an emphasis on design, performance and practical application, this book will be of particular interest to those developing systems based on this technology.

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 584 pages
Book Rating : 4.:/5 (3 download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fusion Energy Update

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ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Fusion Energy Update written by and published by . This book was released on 1979 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Energy Research Abstracts

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ISBN 13 :
Total Pages : 586 pages
Book Rating : 4.0/5 ( download)

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Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.