Göttingen 2025 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 10: Novel Accelerator Concepts IV and Applications
AKBP 10.8: Vortrag
Donnerstag, 3. April 2025, 18:00–18:15, ZHG004
Advanced bandwidth and energy control of an all-optical hard Compton X-ray source — •Martin Meisel1, Simon Bohlen1, Theresa Brümmer1, Florian Grüner2, Cristina Mariani1,2, Theresa Staufer2, Jonathan Wood1, Jens Osterhoff3, and Kristjan Poder1 — 1Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany — 2Universität Hamburg and Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany — 3Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
Compact, tunable X-ray sources with narrow bandwidths are essential for many applications. Laser-plasma accelerator-driven inverse Compton scattering sources show promise but are limited by broad bandwidths and low photon flux. Using an active plasma lens for electron beam tailoring, we demonstrated X-ray tunability from 34 keV to 81 keV without moving parts and reduced electron bunch-induced broadening, achieving a threefold improvement in total bandwidth. Ongoing work to shape the scattering laser aims to further narrow the bandwidth and boost photon production, paving the way for highly precise and efficient compact X-ray sources for future applications.
Keywords: Laser; Compton; X-ray; Plasma; Radiation