Dortmund 2021 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 6: Diagnostics, Control and Instrumentation I

AKBP 6.5: Vortrag

Mittwoch, 17. März 2021, 15:00–15:15, AKBPa

OTR diagnostic measurements for the High-Energy Scraper System of the S-DALINAC* — •M. Fischer, M. Arnold, M. Dutine, L. Jürgensen, and N. Pietralla — IKP, TU Darmstadt

The S-DALINAC is the thrice recirculating superconducting electron accelerator at the TU Darmstadt [1]. It delivers electron beams with energies up to 130 MeV which are used, among other things, for experiments in fundamental nuclear physics research. For the high-energy experiments at the S-DALINAC, a small momentum spread of the electron beam is of crucial importance. To reduce the momentum spread and improve the stability of the beam, a high-energy scraper system in the extraction beamline is used. In order to verify the impact of the scraper system, a new beam diagnostic setup was installed in a subsequent dispersive section. It is used to characterize the beam profile and quantify temporal fluctuations of the beam by optical transition radiation (OTR). In this talk, the beam diagnostic setup, its commissioning, and the results of the first measurements will be presented.

[1] N. Pietralla, Nuclear Physics News, Vol. 28, No. 2, 4 (2018).

* Work supported by DFG through GRK 2128.