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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 10: Instrumentation and Beam Diagnostics II
AKBP 10.4: Talk
Wednesday, March 20, 2024, 18:00–18:15, E 020
Status and Perspectives of the Laser-Compton Backscattering Source at the S-DALINAC* — •Alexander Smushkin1, Michaela Arnold1, Vincent Bagnoud2,3, Joachim Enders1, Maximilian Meier1, and Norbert Pietralla1 — 1Institut für Kernphysik, TU Darmstadt, Germany — 2Institut für Angewandte Physik, TU Darmstadt, Germany — 3GSI, Darmstadt, Germany
Quasi-monochromatic highly polarized MeV-ranged photon beams can be provided for a variety of applications by Compton scattering of a laser beam off ultra-relativistic electrons through a restricted aperture. The energy of the scattered photons is highest for backscattering, i.e. a scattering angle of 180∘. In order to provide a high-flux Laser-Compton backscattering (LCB) light source with narrow energy bandwidth, a high-power laser with high stability and high repetition rate needs to be precisely synchronized with an ultra-relativistic electron beam. Such a source has been designed and constructed at the Superconducting Darmstadt Linear Accelerator S-DALINAC. The LCB source will be capable to provide photons with high brilliance and energies around 0.1 MeV. It is envisaged to be used as diagnostics tool for on-line beam-energy and energy-spread measurements, as well as a future experimental setup in the three-turn Energy Recovery Linac (ERL) mode of the S-DALINAC. This contribution will present the current status and perspectives of the LCB source.
*Work supported by DFG (GRK 2128 AccelencE, GRK 2891 and Inst163/308-1 FUGG) and HMWK (cluster project ELEMENTS, ID 500/10.006, and LOEWE research cluster Nuclear Photonics)
Keywords: ERL; Photon Source; Compton Scattering; S-DALINAC; Electron Accelerator