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Book Low perturbation Interrogation of the Internal and Near field Plasma Structure of a Hall Thruster Using a High speed Probe Positioning System

Download or read book Low perturbation Interrogation of the Internal and Near field Plasma Structure of a Hall Thruster Using a High speed Probe Positioning System written by James Matthew Haas and published by . This book was released on 2001 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fundamentals of Electric Propulsion

Download or read book Fundamentals of Electric Propulsion written by Dan M. Goebel and published by John Wiley & Sons. This book was released on 2023-10-25 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Electric Propulsion Understand the fundamental basis of spaceflight with this cutting-edge guide As spacecraft engineering continues to advance, so too do the propulsion methods by which human beings can seek out the stars. Ion thrusters and Hall thrusters have been the subject of considerable innovation in recent years, and spacecraft propulsion has never been more efficient. For professionals within and adjacent to spacecraft engineering, this is critical knowledge that can alter the future of space flight. Fundamentals of Electric Propulsion offers a thorough grounding in electric propulsion for spacecraft, particularly the features and mechanisms underlying Ion and Hall thrusters. Updated in the light of rapidly expanding knowledge, the second edition of this essential guide detailed coverage of thruster principles, plasma physics, and more. It reflects the historic output of the legendary Jet Propulsion Laboratory and promises to continue as a must-own volume for spacecraft engineering professionals. Readers of the second edition of Fundamentals of Electric Propulsion readers will also find: Extensive updates to chapters covering hollow cathodes and Hall thrusters, based on vigorous recent research New sections covering magnetic shielding, cathode plume instabilities, and more Figures and homework problems in each chapter to facilitate learning and retention Fundamentals of Electric Propulsion is an essential work for spacecraft engineers and researchers working in spacecraft propulsion and related fields, as well as graduate students in electric propulsion, aerospace science, and space science courses.

Book The Use of Electrostatic Probes to Characterize the Discharge Plasma Structure and Identify Discharge Cathode Erosion Mechanisms in Ring cusp Ion Thrusters

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 Recent Results from Internal and Very Near Field Plasma Diagnostics of a High Specific Impulse Hall Thruster

Download or read book Recent Results from Internal and Very Near Field Plasma Diagnostics of a High Specific Impulse Hall Thruster 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 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Floating potential and ion current density measurements were taken on the laboratory model NASA-173Mv2 in order to improve understanding of the physical processes affecting Hall thruster performance at high specific impulse. Floating potential was measured on discharge chamber centerline over axial positions spanning 10 mm from the anode to 100 mm downstream of the exit plane. Ion current density was mapped radially up to 300 mm from thruster centerline over axial positions in the very-near-field (10 to 250 mm from the exit plane). All data were collected using a planar probe in conjunction with a high-speed translation stage to minimize probe-induced thruster perturbations. Measurements of floating potential at a xenon flow rate of 10 mg/s have shown that the acceleration layer moved upstream 3 1 mm when the voltage increased from 300 to 600 V. The length of the acceleration layer was 14 2 mm and was approximately constant with voltage and magnetic field. Ion current density measurements indicated the annular ion beam crossed the thruster centerline 163 mm downstream of the exit plane. Radial integration of the ion current density at the cathode plane provided an estimate of the ion current fraction. At 500 V and 5 mg/s, the ion current fraction was calculated as 0.77. Hofer, Richard R. and Gallimore, Alec D. and Jacobson, David (Technical Monitor) Glenn Research Center NASA/CR-2003-212604, E-14162, IEPC-2003-037

Book Hybrid PIC MCC Computational Modeling of Hall Thrusters

Download or read book Hybrid PIC MCC Computational Modeling of Hall Thrusters written by Justin William Koo and published by . This book was released on 2005 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Experimental Investigations with a 5 kW Class Laboratory Model Closed Drifted Hall Thruster

Download or read book Experimental Investigations with a 5 kW Class Laboratory Model Closed Drifted Hall Thruster written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final technical report summarizes research conducted at the Plasmadynamics and Electric Propulsion Laboratory (PEPL) to characterize the internal and plume plasma of a closed-drift Hall thruster (CDT). The project was composed of the following segments: 1) a 5-kW-class CDT (P5) was built and characterized in terms of performance and plume divergence; 2) the molecular-beam mass spectrometer (MBMS) was used to measure the ion energy distribution finction and charge state throughout the PS plume; 3) laser-induced fluorescence was used to measure the ion velocity and temperature in the near-field plume; 4) a 35 GHz microwave interferometer was developed to measure plasma oscillations and electron density in the plume; and 5) the near-field and internal plasma of the PS were characterized using the High-speed Axial Reciprocating Probe (HARP) system developed for this effort. The HARP system enabled, for the first time, the insertion and removal of probes from a CDT discharge channel while minimizing perturbation to thruster operation. The magnetic field, electron temperature, ion number density, plasma and floating potential, and Hall current were mapped throughout the PS discharge chamber at two operating conditions. Thruster perturbation, determined by monitoring discharge current, was less than 10% for the majority of measurements.

Book An Evaluation of Krypton Propellant in Hall Thrusters

Download or read book An Evaluation of Krypton Propellant in Hall Thrusters written by Jesse Allen Linnell and published by . This book was released on 2006 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Development and Characterization of a Two stage Hybrid Hall ion Thruster

Download or read book The Development and Characterization of a Two stage Hybrid Hall ion Thruster written by Peter Young Peterson and published by . This book was released on 2004 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: