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Who Am I?

Who Am I?. Thomas M. Antonsen Jr. Professor of Physics and Electrical and Computer Engineering University of Maryland College Park. How Did I Get Here?. High School Ramsey High School -1969 Ramsey, NJ College BS (Electrical Engineering) 1973 MS/PhD (Plasma Physics) 1976 Career

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Who Am I?

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  1. Who Am I? Thomas M. Antonsen Jr. Professor of Physics and Electrical and Computer Engineering University of Maryland College Park

  2. How Did I Get Here? High School Ramsey High School -1969 Ramsey, NJ College BS (Electrical Engineering) 1973 MS/PhD (Plasma Physics) 1976 Career Post Doc Naval Research Lab 1 year Research Scientist (MIT 3 years) Joined University of Maryland in 1980 1969-2011 41/42 years at a University

  3. Plasma Physics Plasma is the fourth state of matter (solid, liquid, gas, plasma) Most of the visible universe is plasma http://FusEdWeb.pppl.gov/

  4. Fission Fusion Small nuclei stick together to make a bigger one and releases energy Fusion powers all the stars, including the Sun. The fuel is hydrogen, but it has to be heated to millions of degrees to ignite the burn Power plants based on fusion could supply all our electrical needs. They could also be used to generate hydrogen for fuel cell cars, thus reducing consumption of oil.

  5. Why Fusion? • Fuel is inexhaustible and available to all (from water) • There is no CO2 emission • There is no danger of a runaway or a meltdown – • turn it off like a gas burner • Waste is low level and has to be monitored only for 50-100 years (Yucca Mountain is for ~10,000 years) • Low risk of nuclear materials proliferation - No uranium or plutonium

  6. State of the Art Magnetic Confinement: ITER US-EU-Russia-Japan-India Collaboration Will be built in Cardarache France Completion 2016?? http://www.iter.org/ Inertial Confinement: NIF Lawrence Livermore Lab Under construction Completion expected in 2008 http://www.llnl.gov/nif/ Similar program in France

  7. Direct acceleration limited to laser period E k Intense laser pulse B plasma: Plasma wave driven by force of laser pulse Plasma Wave Laser Pulse Duration of pulse matched to plasma period Speed of wave = group velocity of laser pulse I=1018 W/cm2, L= 10cm DE ~ 1 GeV Particle Acceleration Using Plasmas

  8. How Does it Really Work? Analogy: Laser PulseBoat PlasmaLake Plasma WaveSurface Wave ElectronsSurfer Relativity: Small change in velocity Large change in energy Injection  Tow rope

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