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Low Power Ion Thruster Development Status Nasa Tm 1999 208822 Mar 1 1999
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Book Synopsis LOW-POWER ION THRUSTER DEVELOPMENT STATUS... NASA/TM-1999-208822... MAR. 1, 1999 by : United States. National Aeronautics and Space Administration
Download or read book LOW-POWER ION THRUSTER DEVELOPMENT STATUS... NASA/TM-1999-208822... MAR. 1, 1999 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis THERMAL ENVIRONMENTAL TESTING OF NSTAR ENGINEERING MODEL ION THRUSTERS... NASA/TM-1999-206304... MAR. 1, 1999 by : United States. National Aeronautics and Space Administration
Download or read book THERMAL ENVIRONMENTAL TESTING OF NSTAR ENGINEERING MODEL ION THRUSTERS... NASA/TM-1999-206304... MAR. 1, 1999 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-Power Ion Thruster Development Status by :
Download or read book Low-Power Ion Thruster Development Status written by and published by . This book was released on 1999 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development Status of the NASA 30-cm Ion Thruster and Power Processor by :
Download or read book Development Status of the NASA 30-cm Ion Thruster and Power Processor written by and published by . This book was released on 1994 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781792661556 Total Pages :28 pages Book Rating :4.6/5 (615 download)
Book Synopsis Ion Thruster Development at NASA Lewis Research Center by : National Aeronautics and Space Adm Nasa
Download or read book Ion Thruster Development at NASA Lewis Research Center written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-12-29 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent ion propulsion technology efforts at NASA's Lewis Research Center including development of kW-class xenon ion thrusters, high power xenon and krypton ion thrusters, and power processors are reviewed. Thruster physical characteristics, performance data, life projections, and power processor component technology are summarized. The ion propulsion technology program is structured to address a broad set of mission applications from satellite stationkeeping and repositioning to primary propulsion using solar or nuclear power systems. Sovey, James S. and Hamley, John A. and Patterson, Michael J. and Rawlin, Vincent K. and Sarver-Verhey, Timothy R. Glenn Research Center NASA-TM-105983, E-7507, NAS 1.15:105983 RTOP 506-42-31...
Book Synopsis NASA 30 Cm Ion Thruster Development Status by : Michael J. Patterson
Download or read book NASA 30 Cm Ion Thruster Development Status written by Michael J. Patterson and published by . This book was released on 1995 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722163853 Total Pages :32 pages Book Rating :4.1/5 (638 download)
Book Synopsis Development of an Ion Thruster and Power Processor for New Millennium's Deep Space 1 Mission by : National Aeronautics and Space Administration (NASA)
Download or read book Development of an Ion Thruster and Power Processor for New Millennium's Deep Space 1 Mission written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Solar Electric Propulsion Technology Applications Readiness Program (NSTAR) will provide a single-string primary propulsion system to NASA's New Millennium Deep Space 1 Mission which will perform comet and asteroid flybys in the years 1999 and 2000. The propulsion system includes a 30-cm diameter ion thruster, a xenon feed system, a power processing unit, and a digital control and interface unit. A total of four engineering model ion thrusters, three breadboard power processors, and a controller have been built, integrated, and tested. An extensive set of development tests has been completed along with thruster design verification tests of 2000 h and 1000 h. An 8000 h Life Demonstration Test is ongoing and has successfully demonstrated more than 6000 h of operation. In situ measurements of accelerator grid wear are consistent with grid lifetimes well in excess of the 12,000 h qualification test requirement. Flight hardware is now being assembled in preparation for integration, functional, and acceptance tests. Sovey, James S. and Hamley, John A. and Haag, Thomas W. and Patterson, Michael J. and Pencil, Eric J. and Peterson, Todd T. and Pinero, Luis R. and Power, John L. and Rawlin, Vincent K. and Sarmiento, Charles J. and Anderson, John R. and Bond, Thomas A. and Cardwell, G. I. and Christensen, Jon A. Glenn Research Center; Jet Propulsion Laboratory RTOP 242-70-01...
Book Synopsis Development Status of a Power Processing Unit for Low Power Ion Thrusters by : Luis R. Pinero
Download or read book Development Status of a Power Processing Unit for Low Power Ion Thrusters written by Luis R. Pinero and published by . This book was released on 2000 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721192823 Total Pages :30 pages Book Rating :4.1/5 (928 download)
Book Synopsis Internal Plasma Properties and Enhanced Performance of an 8 Cm Ion Thruster Discharge by : National Aeronautics and Space Administration (NASA)
Download or read book Internal Plasma Properties and Enhanced Performance of an 8 Cm Ion Thruster Discharge written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a need for a lightweight, low power ion thruster for space science missions. Such an ion thruster is under development at NASA Glenn Research Center. In an effort to better understand the discharge performance of this thruster. a version of this thruster with an anode containing electrically isolated electrodes at the cusps was fabricated and tested. Discharge characteristics of this ring cusp ion thruster were measured without ion beam extraction. Discharge current was measured at collection electrodes located at the cusps and at the anode body itself. Discharge performance and plasma properties were measured as a function of discharge power, which was varied between 20 and 50 W. It was found that ion production costs decreased by as much as 20 percent when the two most downstream cusp electrodes were allowed to float. Floating the electrodes did not give rise to a significant increase in discharge power even though the plasma density increased markedly. The improved performance is attributed to enhanced electron containment. Foster, John E. and Patterson, Michael J. Glenn Research Center NASA/TM-1999-209386, E-11813, NAS 1.15:209386
Book Synopsis Scaling of Ion Thrusters to Low Power by :
Download or read book Scaling of Ion Thrusters to Low Power written by and published by . This book was released on 1998 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Thruster Development at NASA Lewis Research Center by :
Download or read book Ion Thruster Development at NASA Lewis Research Center written by and published by . This book was released on 1992 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721673704 Total Pages :34 pages Book Rating :4.6/5 (737 download)
Book Synopsis The High Power Electric Propulsion (HiPEP) Ion Thruster by : National Aeronautics and Space Administration (NASA)
Download or read book The High Power Electric Propulsion (HiPEP) Ion Thruster written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical implementation of the proposed Jupiter Icy Moon Orbiter (JIMO) mission, which would require a total delta V of approximately 38 km/s, will require the development of a high power, high specific impulse propulsion system. Initial analyses show that high power gridded ion thrusters could satisfy JIMO mission requirements. A NASA GRC-led team is developing a large area, high specific impulse, nominally 25 kW ion thruster to satisfy both the performance and the lifetime requirements for this proposed mission. The design philosophy and development status as well as a thruster performance assessment are presented. Foster, John E. and Haag, Tom and Patterson, Michael and Williams, George J., Jr. and Sovey, James S. and Carpenter, Christian and Kamhawi, Hani and Malone, Shane and Elliot, Fred Glenn Research Center NASA/TM-2004-213194, E-14693, AIAA Paper 2004-3812
Book Synopsis SCALING OF ION THRUSTERS TO LOW POWER... NASA/TM-1998-206530... AUG. 6, 1998 by : United States. National Aeronautics and Space Administration
Download or read book SCALING OF ION THRUSTERS TO LOW POWER... NASA/TM-1998-206530... AUG. 6, 1998 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721531929 Total Pages :30 pages Book Rating :4.5/5 (319 download)
Book Synopsis Ion Engine and Hall Thruster Development at the NASA Glenn Research Center by : National Aeronautics and Space Administration (NASA)
Download or read book Ion Engine and Hall Thruster Development at the NASA Glenn Research Center written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: NASA's Glenn Research Center has been selected to lead development of NASA's Evolutionary Xenon Thruster (NEXT) system. The central feature of the NEXT system is an electric propulsion thruster (EPT) that inherits the knowledge gained through the NSTAR thruster that successfully propelled Deep Space 1 to asteroid Braille and comet Borrelly, while significantly increasing the thruster power level and making improvements in performance parameters associated with NSTAR. The EPT concept under development has a 40 cm beam diameter, twice the effective area of the Deep-Space 1 thruster, while maintaining a relatively-small volume. It incorporates mechanical features and operating conditions to maximize the design heritage established by the flight NSTAR 30 cm engine, while incorporating new technology where warranted to extend the power and throughput capability. The NASA Hall thruster program currently supports a number of tasks related to high power thruster development for a number of customers including the Energetics Program (formerly called the Space-based Program), the Space Solar Power Program, and the In-space Propulsion Program. In program year 2002, two tasks were central to the NASA Hall thruster program: 1.) the development of a laboratory Hall thruster capable of providing high thrust at high power; 2.) investigations into operation of Hall thrusters at high specific impulse. In addition to these two primary thruster development activities, there are a number of other on-going activities supported by the NASA Hall thruster program, These additional activities are related to issues such as thruster lifetime and spacecraft integration. Domonkos, Matthew T. and Patterson, Michael J. and Jankovsky, Robert S. Glenn Research Center NASA/TM-2002-211969, NAS 1.15:211969, E-13612, IMECE-2002-34444
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721532490 Total Pages :32 pages Book Rating :4.5/5 (324 download)
Book Synopsis Microwave Ecr Ion Thruster Development Activities at NASA Glenn Research Center by : National Aeronautics and Space Administration (NASA)
Download or read book Microwave Ecr Ion Thruster Development Activities at NASA Glenn Research Center written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Outer solar system missions will have propulsion system lifetime requirements well in excess of that which can be satisfied by ion thrusters utilizing conventional hollow cathode technology. To satisfy such mission requirements, other technologies must be investigated. One possible approach is to utilize electrodeless plasma production schemes. Such an approach has seen low power application less than 1 kW on earth-space spacecraft such as ARTEMIS which uses the rf thruster the RIT 10 and deep space missions such as MUSES-C which will use a microwave ion thruster. Microwave and rf thruster technologies are compared. A microwave-based ion thruster is investigated for potential high power ion thruster systems requiring very long lifetimes. Foster, John E. and Patterson, Michael J. Glenn Research Center NASA/TM-2002-211877, NAS 1.15:211877, E-13559, AIAA Paper 2002-3837
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781793987747 Total Pages :40 pages Book Rating :4.9/5 (877 download)
Book Synopsis Status of Nasa's Evolutionary Xenon Thruster (Next) Long-Duration Test as of 50,000 H and 900 Kg Throughput by : National Aeronautics and Space Adm Nasa
Download or read book Status of Nasa's Evolutionary Xenon Thruster (Next) Long-Duration Test as of 50,000 H and 900 Kg Throughput written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-14 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA's Evolutionary Xenon Thruster (NEXT) project is developing the next-generation solar electric propulsion ion propulsion system with significant enhancements beyond the state-of-the-art NASA Solar Electric Propulsion Technology Application Readiness (NSTAR) ion propulsion system in order to provide future NASA science missions with enhanced propulsion capabilities. As part of a comprehensive thruster service life assessment, the NEXT Long-Duration Test (LDT) was initiated in June 2005 to demonstrate throughput capability and validate thruster service life modeling. The NEXT LDT exceeded its original qualification throughput requirement of 450 kg in December 2009. To date, the NEXT LDT has set records for electric propulsion lifetime and has demonstrated 50,170 h of operation, processed 902 kg of propellant, and delivered 34.9 MN-s of total impulse. The NEXT thruster design mitigated several life-limiting mechanisms encountered in the NSTAR design, dramatically increasing service life capability. Various component erosion rates compare favorably to the pretest predictions based upon semi-empirical ion thruster models. The NEXT LDT either met or exceeded all of its original goals regarding lifetime demonstration, performance and wear characterization, and modeling validation. In light of recent budget constraints and to focus on development of other components of the NEXT ion propulsion system, a voluntary termination procedure for the NEXT LDT began in April 2013. As part of this termination procedure, a comprehensive post-test performance characterization was conducted across all operating conditions of the NEXT throttle table. These measurements were found to be consistent with prior data that show minimal degradation of performance over the thruster's 50 kh lifetime. Repair of various diagnostics within the test facility is presently planned while keeping the thruster under high vacuum conditions. These diagnostics will provide additional critical informat
Book Synopsis LOW-POWER ION PROPULSION FOR SMALL SPACECRAFT... NASA-TM-113111... APR. 7, 1998 by :
Download or read book LOW-POWER ION PROPULSION FOR SMALL SPACECRAFT... NASA-TM-113111... APR. 7, 1998 written by and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
