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Space Environment

Space Environment. Dr. Hulya Kirkici Associate Professor Electrical and Computer Engineering Auburn University Hulya.kirkici@ieee.org B.S. Middle East Technical University, Ankara M.S. Middle East Technical University, Ankara Ph.D. Polytechnic University, New York, NY, USA. Hulya Kirkici

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Space Environment

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  1. Space Environment Dr. Hulya Kirkici Associate Professor Electrical and Computer Engineering Auburn University Hulya.kirkici@ieee.org B.S. Middle East Technical University, Ankara M.S. Middle East Technical University, Ankara Ph.D. Polytechnic University, New York, NY, USA Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  2. Space Environment Research Background: Lasers and laser physics Laser systems Plasma Physics (cold plasmas) Space plasmas Space environmental affects on orbital vehicles Space power systems Pulsed power engineering Electrical insulations in space Dielectrics (in space) and dielectric breakdown Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  3. Space Environment Course Outline: Introductions Sun and Solar System Interplanetary Space Solar Terrestrial and Earth-Moon Systems Upper Atmosphere and Ionosphere Magnetic field and Magnetosphere Motion of charged particles Solar wind and interactions Communication in space environment Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  4. Space Environment Text Books Introduction to the Space Environment, by Thomas F. Tascione Orbit Book Company, 1988 The Space Environment, by Alan C. Tribble, Princeton University Press, 1995 Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  5. Space Environment Introduction Space Environment: Vacuum Neutral Plasma Radiation Micrometeoroid & debris Interactions: Spacecraft Sub-systems Payloads Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  6. Space Environment Human curiosity to know the heavens…. Nature of Universe…… Isaac Newton – gravitational force ~250 years Fist object in space (leaving Earth’s surface) in 1957 Lunar expiatory 1960s and 1970s Near Earth space vehicles ~1980s and 1990s Space Shuttle ~ 1980s and today International Space Station ~1990s Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  7. Space Environment Today’s success didn’t happen over-night Many failures 20-30 percent of failures are due to interactions Need to know more about the space and its environment to be able to design, build, and operate more reliable space vehicles, systems Problems still exist Recent Shuttle disaster Mars probe failures Other examples…. Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  8. Space Environment Introduction Space Environment: Vacuum Neutral Plasma Radiation Micrometeoroid & debris Interactions: Spacecraft Sub-systems Payloads Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  9. Space Environment Vacuum – understood, no air, or no molecules Vacuum like At an altitude of 300 km, pressure is ~10E-5 torr Mass density ~10E17 per meter-cube Composed of neutral particles Kinetic energy chemical interaction Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  10. Space Environment Plasma 1% of neutral species are ionized Forms plasma (weakly ionized) Charge particles accelerate gain energy Collisions among themselves and spacecraft Charging effects on the vehicle And more…. Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  11. Space Environment Radiation Solar wind UV radiation X-ray and gamma rays MeV energy Penetrate through the skin Radiation hardening Material Degradation Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  12. Space Environment Micro-meteorites and Debris Man-made contamination Dust from Earth's surface Exhaust debris Interplanetary dust Kinetic energies High (hyper) velocities 1 gr of particle with Km/s velocity Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

  13. Space Environment QUESTIONS? End of lecture-1 Hulya Kirkici Istanbul Technical University Lecture-1 September 29,2003

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