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Mainz 2022 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 4: Radiation Generation and Applications

AKBP 4.5: Talk

Monday, March 28, 2022, 17:00–17:15, AKBP-H14

Status of the Laser-Compton backscattering Source at the S-DALINAC* — •Maximilian Meier, Michaela Arnold, Joachim Enders, and Norbert Pietralla — Institut für Kernphysik, TU Darmstadt, Germany

Compton scattering of a Laser beam off an ultra-relativistic electron beam (Eemec2) through a restricted aperture can provide quasi-monochromatic highly polarized X-ray or gamma-ray beams for a variety of applications [1]. Highest energies of the scattered photons are obtained for photon-scattering angles of 180, i. e., backscattering. A powerful stable and well synchronized laser with a high repetition rate is essential for a high-flux Laser-Compton light source with narrow energy-bandwidth. A project at TU Darmstadt foresees to synchronize a highly repetitive high-power laser with the Superconducting DArmstadt electron LINear ACcelerator (S-DALINAC [2]), capable of running in energy recovery mode [3], to realize a Laser-Compton backscattering (LCB) source with photon beam energies up to 180 keV. An overview over the design concept of the LCB Source at the S-DALINAC will be given, simulations on the layout and the estimated output will be presented.

[1] C. Bemporad et al., Phys. Rev. 138, B1546 (1965)

[2] N. Pietralla, Nucl. Phys. News 28(2), 4 (2018)

[3] M. Arnold et al., Phys. Rev. Accel. Beams 23, 020101(2020)

*Supported through the state of Hesse (LOEWE research cluster Nuclear Photonics) and DFG through GRK 2128 *AccelencE*.

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