Accession Number : ADA520114


Title :   Development of an Electron-Positron Source for Positron Annihilation Lifetime Spectroscopy


Descriptive Note : Final rept. 20 Dec 2006-19 Dec 2009


Corporate Author : MICHIGAN UNIV ANN ARBOR


Personal Author(s) : Nees, John ; Hou, Bixue ; Modovanakis, Aghapi ; Easter, James ; Sokolov, Igor ; Bulanov, Stepan ; Downer, Michael


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a520114.pdf


Report Date : 19 Dec 2009


Pagination or Media Count : 9


Abstract : The extremely strong fields produced by focusing powerful laser pulses into minute volumes of material enable relativistic effects to be used to generate radiation, to accelerate particles, and to produce electrons and positrons from vacuum. From applications using existing high-repetition-rate lasers to those projected for super intense systems, the individual and collective behavior of electrons is the hub of both practical and theoretical directions. This report reviews work directed toward the application of positron generation from laser interaction with matter and vacuum. It spans funded original experimental research in laser-plasma interaction, where electrons dominate energy transport and MeV/micrometer fields are revealed, to theoretical collaborations exploring the connection between present and foreseeable lasers to the quantum electrodynamics of radiating electrons and electron-positron pair production from vacuum.


Descriptors :   *PLASMAS(PHYSICS) , *PARTICLE ACCELERATOR TECHNIQUES , *ANNIHILATION REACTIONS , *QUANTUM ELECTRODYNAMICS , *POSITRONS , *ELECTRONS , *PULSED LASERS , VACUUM , ORIENTATION(DIRECTION) , ENERGY TRANSFER , LASERS , LASER BEAMS , PARTICLES , LIFE SPAN(BIOLOGY) , PARTICLE COLLISIONS , COLLABORATIVE TECHNIQUES , INTENSITY , MATERIALS , INTERACTIONS , SPECTROSCOPY , LITERATURE SURVEYS , PARTICLE IN CELL , RADIATION , VOLUME


Subject Categories : Lasers and Masers
      Test Facilities, Equipment and Methods
      Electricity and Magnetism
      Nuclear Physics & Elementary Particle Physics
      Plasma Physics and Magnetohydrodynamics
      Quantum Theory and Relativity


Distribution Statement : APPROVED FOR PUBLIC RELEASE