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Prof. Dr. Mike Downer, University of Texas in Austin
Plasma-based GeV lepton accelerators
Veranstaltungsart: Physikalisches Kolloquium
Zeit: 13.11.2017, 16:15 - 17:30 Uhr
Ort: Hörsaal 1, Max-Wien-Platz 1
Veranstalter: Physikalisch-Astronomische Fakultät


Max-Wien-Platz 1

07743 Jena

Tel. 03641 9-47001


 Plasma-based accelerators work by surfing electron or positron bunches on light-speed electron-density waves driven by intense ultrashort laser pulses or charged particle bunches in ionized gas.  I will highlight recent advances in single-stage acceleration of lepton bunches to multi-GeV energy, achieved on a tabletop rather than a multi-acre real-estate tract, while maintaining few-percent energy spread, few-femtosecond duration, and sub-milliradian divergence.  I will also describe experiments that diagnose the properties of the plasma waves and the electrons they accelerate, and others that convert plasma-accelerated GeV electrons into bright, ultrashort x-ray pulses.   Finally, I will comment on technical challenges to realizing compact free-electron lasers and electron-positron colliders based on plasma accelerators. 


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