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Dresden 2017 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 2: New Accelerator Concepts II

AKBP 2.6: Talk

Tuesday, March 21, 2017, 10:45–11:00, MOL 213

Towards higher intensities and proton imaging with the laser-driven LIGHT beamline — •Diana Jahn1, Dennis Schumacher2, Christian Brabetz2, Johannes Ding1, Simon Weih1, Abel Blazevic2,3, Vincent Bagnoud2,3, Florian Kroll4,5, Florian-Emanuel Brack4,5, Tom Cowan4,5, Ulrich Schramm4,5, and Markus Roth11Technische Universität Darmstadt, Darmstadt, Deutschland — 2GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Deutschland — 3Helmholtzinstitut Jena, Jena, Deutschland — 4Das Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Deutschland — 5Technische Universität Dresden, Deutschland

Within the Laser Ion Generation, Handling and Transport (LIGHT) research project at GSI, laser-driven ion acceleration and beam shaping are explored, combining a target normal sheath acceleration (TNSA) proton source with conventional accelerator technology. For this investigation, an ion test beamline was built and protons were accelerated via the TNSA mechanism. Out of broad energy spectrum, protons with an energy of 8 MeV are selected using chromatic focusing of a pulsed solenoid and injected into an rf cavity. Through phase focusing, temporally compressed proton bunches below 0.5 ns (FWHM) were generated with up to 5x108 particles in a single bunch at a distance of 6 m from the source and focused with a second solenoid. These bunches were successfully used for proton imaging.

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