Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 15: Poster 1: Quanteninformation, Quanteneffekte, Laserentwicklung, Laseranwendungen, Ultrakurze Pulse, Photonik
Q 15.4: Poster
Montag, 14. März 2011, 16:30–19:30, P1
Laser generated x-ray beams from a table-top source — •Michael Schnell1, Christian Peth2, Björn Landgraf1,3, Tobias Thiele2, Thomas Königstein2, Timur Kudyakov2, Alexander Sävert1, Maria Reuter1, Bernhard Hidding2, Monika Toncian2, Toma Toncian2, Matle Kaluza1,3, Georg Pretzler2, Oswald Willi2, and Christian Spielmann1,3 — 1Institut für Optik und Quantenelektronik, Friedrich-Schiller Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany — 2Institut für Laser- und Plasmaphysik, Heinrich-Heine Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany — 3Helmholtzinstitut Jena, Helmholtzweg 4, 07743 Jena, Germany
The use of ultra intense laser pulses to excite plasma waves with a relativistic phase velocity is a possible route to the development of compact particle accelerators. Quasimonoenergetic electron beams with energies from 0.1 to 1 GeV have been reliably generated. In addition these compact particle accelerators are sources of intense x-rays with peak brilliances comparable to "3rd generation" synchrotrons.
In this poster we present measured x-ray betatron spectra recorded in Düsseldorf and Jena with maximum emission at serveral keV. The spectra were taken in single photon counting mode and are in good agreement with theoretical simulations. Furthermore we used the "knife-edge" technique for an estimation of the betatron source size.