Würzburg 2018 – scientific programme
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 10: New Accelerator Concepts and Radiofrequency
AKBP 10.8: Talk
Thursday, March 22, 2018, 18:15–18:30, NW-Bau - HS2
Measurement of the Quality Factors at the S-DALINAC Accelerator Cavities. — •Simon Roeder, Michaela Arnold, Ruben Grewe, Christoph Burandt, and Norbert Pietralla — IKP, TU Darmstadt, Germany
The superconducting thrice recirculating linear electron accelerator at TU Darmstadt (S-DALINAC) is designed to reach a maximum beam energy of 130 MeV. The 20-cell superconducting radio frequency (srf) cavities have design values for an accelerating gradient of 5 MV/m with quality factors of 3· 109. Due to a lower quality factor during operation of the srf cavities, high beam energies are limited by the cooling power of the helium liquifier. All accelerating gradients and quality factors of the S-DALINAC srf cavities have been measured in-situ, providing information on how to use a given amount of cooling power in the most efficient way. This contribution will present the results of these measurements and was funded by the DFG as part of the GRK 2128.