This two-day course provides an in-depth overview of risks posed by radiation to spacecraft and working solutions minimizing those risks. Students will gain a solid understanding of the radiation environment, its measurement, its effects and effective mitigation strategies. View course sampler
Instructor:
Dr. Alan C. Tribble has provided space environments effects analysis to more than one dozen NASA, DoD, and commercial programs, including the International Space Station, the Global Positioning System (GPS) satellites, and survival surveillance spacecraft. He holds a Ph.D. in Physics from the University of Iowa and has been twice a Principal Investigator for the NASA Space Environments and Effects Program. He is the author of four books, including the course text: The Space Environment - Implications for Space Design, and over 20 additional technical publications. He is an Associate Editor of the Journal of Spacecraft and Rockets, and Associate Fellow of the AIAA and a Senior Member of the IEEE. Dr. Tribble recently won the 2008 AIAA James A. Van Allen Space Environments Award. He has taught a variety of classes at the University of Southern California, California State University Long Beach, the University of Iowa, and has been teaching courses on space environments and effects since 1992
What the models are for space environments,
where to find them, how to use them.
What the common radiation units mean.
How to equate damage from different species
of radiation.
How to conduct total dose test.
How to conduct SEE tests.
How to use dose-depth curves in determining
shield thickness.
How to shield neutrons.
Course Outline:
Space Radiation Environment. Trapped protons and electrons. Solar energetic particles. Cosmic rays. Neutrons and gamma
rays from Radioactive Thermoelectric Generators (RTGs).
Secondary neutrons from large space structures. Mars surface
and high altitude Earth enironment.
Total Dose and Effects. Energy per unit mass. Units--rads, REMs, Grey, Sieverts. Ionization effects. Charge deposition, migration and collection. Effects on digital and analog MOS
and bipolar devices including ELDRS. Annealing, recovery,
rebound.
Displacement Damage. Crystalline lattice deformations.
Damage thresholds in silicon and gallium arsenide. Damage
equivalence and NIEL. Effects of protons and neutrons on solar
cells and detectors such as CCDs. Dark current, charge transfer
efficiency, maximum power degradation.
Single Event Effects. Ionization by primary particles and secondaries from nuclear collisions. Charge collection in small
structures. Effects in digital and analog devices. Transient and
permanent upsets, soft errors, latch-up, burn-out, SEFI. Volatile
and non-volatile memories, micro and signal processors,
DC/DC converters, optoelectronics.
Testing and Mitigation Techniques. Total dose testing. SEE testing. Facilities. Shielding. Derating. Conservative circuit
design. Systems mitigation. EDAC, latch-up protection
circuitry, watch dog timers, autonomy.
Human Effects. Long duration exposure in low Earth orbit and interplanetary transport vehicles. Threat of high-energy
neutrons to astronauts. Effects in tissue and organs. Dose
Equivalent and weighting factors. Risk of carcinogenesis, DNA
damage. CNS effects.
Tuition:
Tuition for this two-day course is $940 per person at one of our scheduled public courses. Onsite pricing is available. Please call us at 410-956-8805 or send an email to ati@ATIcourses.com.
