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Tuesday, November 24, 2020 | History

2 edition of Deep-dielectric charging -- a review found in the catalog.

Deep-dielectric charging -- a review

W. F. Denig

Deep-dielectric charging -- a review

  • 43 Want to read
  • 8 Currently reading

Published by Space Physics Division, Air Force Geophysics Laboratory in Hanscom AFB, MA .
Written in English

    Subjects:
  • Space vehicles -- Electrostatic charging,
  • Dielectrics

  • Edition Notes

    Other titlesDeep dielectric charging -- a review
    StatementW.F. Denig, A.R. Frederickson
    SeriesAFGL-TR -- 85-0123, Environmental research papers -- no. 919, Environmental research papers (Hanscom AFB, Mass.) -- no. 919
    ContributionsFrederickson, A. R, U.S. Air Force Geophysics Laboratory. Space Physics Division
    The Physical Object
    Paginationiv, 23 p. :
    Number of Pages23
    ID Numbers
    Open LibraryOL17962345M

    Resource Letter SW1: Space Weather American Journal of Physics 84 due to energetic ions, deep-dielectric charging due to relativistic electrons, and surface charging due to moderate-energy electrons. Boulder, CO, ). Popular book on space weather and the forecasting of detrimental conditions. (E) Solar Dynamics and Cited by:   Based on the data from the Medium-Energy Proton and Electron Detector (MEPED) onboard NOAA, anomalies of a Chinese Sun-Synchronous satellite (SSO-X) that occurred between 02/01/ and 09/31/ were studied statistically. About 26 out of the 52 anomalies that occurred outside the South Atlantic Anomaly (SAA) were accompanied by energetic electron storms. SSERVI Team Science. Chicxulub and the Exploration of Large Peak-Ring Impact Craters through Scientific Drilling. For the first time, geologists have drilled into the peak ring of Chicxulub crater, famously linked to the dinosaur extinction event. Polyimide has been widely used as insulating and structural materials in spacecraft due to its excellent electrical, thermal and mechanical properties. However, its charging and discharging problem in harsh space environment has been a major limit to the development of high-voltage and high-power spacecraft. In this chapter, charging and discharging phenomena of dielectric materials under.

    Much still remains unknown on the exact interaction mechanisms that cause thermal insulators and optical sensor deterioration, and deep-dielectric charging arcs that can cause spurious signals and.


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Deep-dielectric charging -- a review by W. F. Denig Download PDF EPUB FB2

Get this from a library. Deep-dielectric charging -- a review. [W F Denig; A R Frederickson; U.S. Air Force Geophysics Laboratory.

Space Physics Division.] -- Deep dielectric charging as it pertains to polar orbiting spacecraft in low earth orbit (LEO) is reviewed. Fluxes of precipitating auroral electrons incident upon exposed spacecraft insulators can. DEEP DIELECTRIC CHARGING OF SPACECRAFT POLYMERS BY ENERGETIC PROTONS Nelson W.

GREEN Jet Propulsion Laboratory, California Institute of Technology Oak Grove Drive, Pasadena, CA USA @ J. DENNISON Utah State University Old Main Hill, Logan, UT USA [email protected] An Overview of Deep Dielectric Charging.

Book. Jan ; They briefly review the circumstances of the most notable spacecraft failures in recent years. Although the true causes of the Author: Shu Lai. Deep Dielectric Charging Of Spacecraft Polymers by Energetic Protons.

Nelson W. Green and JR Dennison. Green and Dennison: DEEP DIELECTRIC CHARGING OF SPACECRAFT POLYMERS applicable for most dielectric materials, the minimum fluence of charges required to induce a dielectric breakdown is on the Cited by: Deep dielectric charging/discharging is a serious space environmental effect.

Charging electric fields are the fundamental cause of dielectric discharging. Many spacecraft operational problems in the earth's outer magnetosphere appear to be due to intense, transient radiation phenomena.

Three types of nat Cited by: Industry Reviews "Fundamentals of Spacecraft Charging is by a well-known leader in the field and provides a comprehensive, unique, and useful addition to the subject. Several sections, particularly the review and discussion of dielectric breakdown, are of particular interest.

This book will be valuable as an introductory text or as a reference for those seeking details on specific aspects of. Deep dielectric discharge produces Lichtenberg figures in transparent materials Inter-electrode breakdown topically at >3 x Vm 1 For internal charging, inferred that similar thresholds apply but difficult to confirm Threshold typically taken as 1 x Vm-1 and preferred to keep electric fields below 1 x Vm-1 for safety • Deep Dielectric Charging charging events can be demonstrated, there was little correlation over a broad range of conditions (1) between CPA measurements and temperature measurements by nearby LANL MPAs and (2) between CPA readings on neighboring spacecraft.

The lack of. Extreme Events in Geospace: Origins, Predictability, and Consequences helps deepen the understanding, description, and forecasting of the complex and inter-related phenomena of extreme space weather events. Composed of chapters written by representatives from many different institutions and fields of space research, the book offers discussions ranging from definitions and historical.

Spacecraft and satellites orbiting the Earth are exposed to the electrostatic environments of the Earth's atmosphere. There are three main orbital regions around the Earth: low Earth orbit (LEO), medium Earth orbit (MEO), and geosynchronous Earth orbit (GEO).

LEO. Both surface charging and deep dielectric charging can lead to discharges that disrupt or damage satellite systems, but it is important to recognize that they are caused by different processes: a. surface charging is due to the interaction of the satellite with the hot plasmas found in many space environments.

Dielectric charging phenomenon, caused by the interaction effect between space environment and spacecraft material, has a severe threat to the normal operation of spacecraft.

Especially, the problem becomes more serious with the improvement of spacecraft operation voltage. An overview of dielectric charging research status, exsiting problems and prospect are by: 3. charging, in review), e.g, – Based on very simple estimates – Discharge thresholds (-1kV, V, V/m) – Max flux ( A m-2).

• Refined assessment must be based on testing and modelling (simplified or complete plasma modelling). • S/C charging guidelines and handbook (cf J. Demol presentation). They all have advantages and disadvantages. In this chapter, we discuss and critique the various mitigation methods. In the last part of this chapter (section ), we discuss briefly mitigation of deep dielectric charging, a recent development.

In general, there are two types of spacecraft charging mitigation methods: active and passive. Fundamentals of Spacecraft Charging is the first and only textbook to bring together all the necessary concepts and equations for a complete understanding of the subject. Written by one of the field's leading authorities, this essential reference enables readers to fully grasp the newest ideas and underlying physical mechanisms related to the.

As will be discussed later, spacecraft anomalies related to deep dielectric charging and discharging occur more often during the declining phase of the solar cycle. Further details of radiation belt variations including solar cycle dependence and role of wave-particle interactions can be found in the Chapters 13 and 14 of this volume.

Nelson W. Green and JR Dennison, “Deep Dielectric Charging of Spacecraft Polymers by Energetic Protons,” IEEE Transaction on Plasma Science, 36(5) October Surface Charging. Surface charging is created from low-energy plasma and photoelectric currents (see Fig.

The midnight to dawn sector is a favored region for surface charging-induced anomalies. Typically, differential charging has occurred after geomagnetic substorms, which result in the injection of keV electrons into the magnetosphere.

Satellite charging depends on the interaction of the spacecraft materials, their thickness, and charged particles energy. Fluxes of electrons ranging from 10 to keV can produce surface charging, while electrons with energy bigger than keV can produce internal charging (deep dielectric charging).Author: Isai Fajardo, Aleksander A.

Lidtke, Sidi Ahmed Bendoukha, Jesus Gonzalez-Llorente, Rafael Rodríguez. O Deep dielectric charging and breakdown of lunar polar regolith Timothy J Stubbs, NASA Goddard Space Flight Center, USA O The effect of electrostatic charges on the removal of radioactive aerosols in the atmosphereFile Size: 6MB.

Chapter Deep Dielectric Charging Introduction The Importance of Deep Dielectric Charging High-Energy Electron and Ion Fluxes Penetration of High-Energy Charges into Materials Properties of Dielectrics Observations Attributed to Deep Dielectric Charging Pages:   Deep dielectric charging of the Moon Andrew Jordan T.J.

Stubbs N. Schwadron H.E. Spence J. Wilson M. Looper C. Zeitlin. Abstract. Experiments on the Combined Release and Radiation Effects Satellite (CRRES) are gathering the most comprehensive data ever taken to measure the near-Earth space environment and its effects on satellite by:   [2] Deep‐dielectric charging by relativistic electrons in the Van Allen radiation belts can damage satellites orbiting in the inner magnetosphere.

During geomagnetic storms in particular, relativistic electrons at MeV energies sometimes vary in count from 10 to 10 5 (electrons/cm 2 sr s) at geostationary orbit (GEO).Cited by: You can write a book review and share your experiences.

Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. Free ebooks since Deep dielectric charging and breakdown of lunar polar regolith OPEN ACCESS A P Jordan, T J Stubbs, J K Wilson, N A Schwadron and H E Spence SJ The effect of electrostatic charges on the removal of radioactive aerosols in the atmosphere by raindrops OPEN ACCESS M Sow and P Lemaitre SJFile Size: KB.

The Aerodynamic Design of Aircraft D. Kuchemann American Institute of Aeronautics and Astronautics, Alexander Bell Drive, SuiteReston, VAUSA. This `internal' or `deep dielectric' charging may occur while a spacecraft is located in terrestrial or planetary radiation belt regions, or during solar particle events.

We describe an updated predictive engineering model for the interplanetary fluence of protons with energies >1, >4, >10, >30, and >60 MeV. This has been the first opportunity to derive a model from a data set that has been collected in space over a long enough period of time to produce a valid sample of solar proton events.

Space Weather Effects on Technologies. Louis J. Lanzerotti. Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey Louis J. Lanzerotti. Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey.

Search for more papers by this author. Book Editor(s): Paul Song. Search for more papers by this author Please review our Terms Cited by: Summary. In the years since the advent of the first electrical communication system - the electrical telegraph - the diversity of communications technologies that are embedded within space-affected environments have vastly by: Overview of surface and deep dielectric charging on spacecraft / Shu T.

Lai --Incoming and outgoing electrons / Shu T. Lai --Spacecraft charging, arcing, and sustained arcs in low earth orbit / Dale C. Ferguson and G. Barry Hillard --Surface discharge on spacecraft / Mengu Cho --Spacecraft charging simulation / Mengu Cho --Spacecraft charging.

Nigel Holmes December 9, at What the Carrington event triggered was not an EMP in the conventional sense. The CME stirred up the Earth’s mag field something chronic (mag storms measured in hours –> days, not a microsecond pulse) and induced heavy, prolonged electric currents in long, metallic structures, e.g.

fence lines, telegraph wires and exposed pipelines. 1 A.B. Carlson, Communication Systems, New York: McGraw Hill Book Company, 2 A.C Tribble, “The space environment, implications for spacecraft design”. 3 Adv. Mater., Ring-opening polymerization of a silaferrocenophane within the channels of mesoporous silica: Poly (ferrocenylsilane)-mcm presursors to magnetic iron manostruc- tures,” Adv.

Mater., vol. 10, pp.Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF.

Visit to get more information about this book, to buy it in print, or to download it as a free PDF. The system integrates the radiation environment with radiation effects on spacecraft. It uses the BAS radiation belt model (BAS-RBM) to forecast the electron flux throughout the outer radiation belt up to 24 hours ahead.

The flux is used to calculate deep dielectric charging, dose rate and total ionizing dose behind levels of shielding. At this time there are four general classes of radiation-induced mechanisms that affect space systems: (1) permanent degradation, (2) transient damage, (3) single-event effects (SEEs), and (4)Â spacecraft charging, including both surface charging and internal (or so-called deep dielectric) charging.

Session 8 - Radiation Environments Rami Vainio (Univ. of Turku); Yuri Shprits (GFZ/UCLA) Tuesday 19/11, & Thursday 21/11, Mozane Particles trapped in the radiation belts and carrying the ring current are hazardous to satellite electronics and can produce surface charging and deep dielectric charging.

This paper proposes a space weather forecasting system at geostationary orbit for high-energy electron flux (>2 MeV). The forecasting model involves multiple sensors on multiple satellites. The sensors interconnect and evaluate each other to predict future conditions at geostationary orbit.

The proposed forecasting model is constructed using a dynamic relational network for sensor diagnosis Cited by: 4. Spacecraft Charging Joseph I. Minow NASA, Marshall Space Flight Center Spacecraft charging is the accumulation of a net charge density on spacecraft surfaces (sur-face charging) or in spacecraft materials (in-ternal or deep dielectric charging).

Charging is a fundamental physical process for materi-als exposed to the space plasma and radiation. Relativistic Proton Spectrometer (RPS) The RPS SOC can be found here. The RPS will measure inner Van Allen belt protons with energies from 50 MeV to 2 GeV. Presently, the intensity of trapped protons with energies beyond about MeV is not well known and thought to be underestimated in existing specification models.Electrostatics Abstract Book - DIGITAL COPY - Free download as PDF File .pdf), Text File .txt) or read online for free.

esp.Fluxes of 10– keV electrons, which can be particularly intense during magnetospheric substorms, can give rise to spacecraft surface charging. Increases in trapped magnetospheric electrons with E > keV can cause deep dielectric charging and background counting in sensors.

Trapped protons of –1 MeV produce surface damage to.