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HK: Fachverband Physik der Hadronen und Kerne

HK 34: Beschleunigerphysik XII

HK 34.4: Vortrag

Dienstag, 16. März 2010, 17:35–17:50, HG ÜR 9

Design Concepts for a Table-Top, bright X-Ray Source based on nonlinear Thomson Backscattering — •Johannes Wenz, Konstantin Khrennikov, Matthias Heigoldt, Shao-Wei Chou, Antonia Popp, Raphael Weingartner, Matthias Fuchs, Zsuzsanna Major, Florian Grüner, Ferenc Krausz, and Stefan Karsch — Max-Planck Institut für Quantenoptik, Garching, Germany

Recent progress in laser-plasma accelerators has led to improved stability in energy and pointing of laser-driven electron beams. Utilizing these electrons and high power laser systems it is feasible to produce bright X-Ray sources by Thomson backscattering. Such a pulsed light source promises to deliver >10⁶ photons, in a pulse duration of <10 fs in the 50 − 100 keV energy range. These unique properties are desirable for ultrashort time-resolved X-Ray spectroscopy and medical application.

We present the expected X-Ray source parameters, applying analytical theory. Improvements of the monochromacity by using a temporal shaped laser pulse could result in peak brilliances exceeding the ones of large scale synchrotron radiation sources of 10²³ (photons/sec./mrad²/mm²/0.1% bandw.) Possible implementations are discussed and a first concept of an all-optical setup is presented.